The Experts below are selected from a list of 213 Experts worldwide ranked by ideXlab platform
Namal Priyantha - One of the best experts on this subject based on the ideXlab platform.
-
Breadnut peel as a highly effective low-cost biosorbent for methylene blue: Equilibrium, thermodynamic and kinetic studies
Arabian Journal of Chemistry, 2017Co-Authors: Linda B L Lim, Hei Ing Chieng, Namal Priyantha, Muhammad Khairud Dahri, D. T. B. Tennakoon, Montri SukluengAbstract:Abstract This work reports the potential use of peel of Breadnut, Artocarpus camansi , as an effective low-cost biosorbent for the removal of methylene blue (MB). Oven dried A. camansi peel (ACP), which had a point of zero charge at pH = 4.8, showed maximum biosorption capacity which was far superior to most literature reported fruit biomasses, including samples that have been activated. Isotherm studies on biosorption of MB onto ACP gave a maximum biosorption capacity of 409 mg g −1 . The Langmuir model was found to give the best fit among various isotherm models investigated and error analyses performed. Kinetics studies were fast with 50% dye being removed in less than 8 min from a 50 mg L −1 dye solution and further, kinetics followed the pseudo second order. Thermodynamic studies indicated that the biosorption process was both spontaneous and exothermic. Fourier transform infrared (FT-IR) of ACP before and after MB adsorption was investigated. It can be concluded that oven dried Breadnut peel is a highly promising low-cost biosorbent with great potential for the removal of MB.
-
Artocarpus camansi Blanco (Breadnut) core as low-cost adsorbent for the removal of methylene blue: equilibrium, thermodynamics, and kinetics studies
Desalination and Water Treatment, 2015Co-Authors: Linda B L Lim, Hei Ing Chieng, Namal Priyantha, Muhammad Khairud DahriAbstract:AbstractThis study investigates the adsorption characteristics of methylene blue (MB) on core of Breadnut, Artocarpus camansi Blanco. Oven-dried Artocarpus camansi core (ACC), with point of zero charge at pH 4.1, was found to be very effective in removing MB when compared to most literature reported fruit biomasses. Six isotherm models coupled with error analyses were used to investigate possible models of adsorption. Both the Langmuir and Sips models were found to give the best fit with maximum adsorption capacity, measured as mg of MB per g of adsorbent, of 369 and 328 mg g−1, respectively. Thermodynamics studies showed that the adsorption process was both spontaneous and exothermic. Fast kinetics, with 50% MB being removed within 5 min when 50 mg L−1 dye solution was used, showed pseudo-second-order. Fourier transform infrared, X-ray fluorescence, and scanning electron microscopic investigation of ACC before and after MB adsorption conclusively demonstrated that oven-dried Breadnut core has great poten...
-
enhancing adsorption capacity of toxic malachite green dye through chemically modified Breadnut peel equilibrium thermodynamics kinetics and regeneration studies
Environmental Technology, 2015Co-Authors: Hei Ing Chieng, Linda B L Lim, Namal PriyanthaAbstract:Breadnut skin, in both its unmodified (KS) and base-modified (BM-KS) forms, was investigated for its potential use as a low-cost adsorbent for the removal of toxic dye, malachite green (MG). Characterization of the adsorbents was carried out using scanning electron microscope, X-ray fluorescence and Fourier transform infra-red spectroscopy. Batch adsorption experiments, carried out under optimized conditions, for the adsorption of MG were fitted using five isotherm models (Langmuir, Freundlich, Dubinin-Radushkevich, Temkin and Sips) and six error functions to determine the best-fit model. The adsorption capacity was greatly enhanced when Breadnut skin was chemically modified with NaOH, leading to an adsorption capacity of 353.0 mg g−1, that was far superior to most reported adsorbents for the removal of MG. Thermodynamics studies indicated that the adsorption of MG was spontaneous on KS and BM-KS, and the reactions were endothermic and exothermic, respectively. Kinetics studies showed that both followed t...
-
Enhancing adsorption capacity of toxic malachite green dye through chemically modified Breadnut peel: equilibrium, thermodynamics, kinetics and regeneration studies.
Environmental technology, 2014Co-Authors: Hei Ing Chieng, Linda B L Lim, Namal PriyanthaAbstract:Breadnut skin, in both its unmodified (KS) and base-modified (BM-KS) forms, was investigated for its potential use as a low-cost adsorbent for the removal of toxic dye, malachite green (MG). Characterization of the adsorbents was carried out using scanning electron microscope, X-ray fluorescence and Fourier transform infra-red spectroscopy. Batch adsorption experiments, carried out under optimized conditions, for the adsorption of MG were fitted using five isotherm models (Langmuir, Freundlich, Dubinin-Radushkevich, Temkin and Sips) and six error functions to determine the best-fit model. The adsorption capacity was greatly enhanced when Breadnut skin was chemically modified with NaOH, leading to an adsorption capacity of 353.0 mg g(-1), that was far superior to most reported adsorbents for the removal of MG. Thermodynamics studies indicated that the adsorption of MG was spontaneous on KS and BM-KS, and the reactions were endothermic and exothermic, respectively. Kinetics studies showed that both followed the pseudo-second order. Regeneration experiments on BM-KS indicated that its adsorption capacity was still maintained at>90% even after five cycles. It can be concluded that NaOH-modified breadfruit skin has great potential to be utilized in real-life application as a low-cost adsorbent for the removal of MG in wastewater treatment.
Lydie Dussol - One of the best experts on this subject based on the ideXlab platform.
-
Ancient Maya sylviculture of Breadnut ( Brosimum alicastrum Sw.) and sapodilla ( Manilkara zapota (L.) P. Royen) at Naachtun (Guatemala): A reconstruction based on charcoal analysis
Quaternary International, 2017Co-Authors: Lydie Dussol, Michelle Elliott, Dominique Michelet, Philippe NondédéoAbstract:Researchers have long argued that the ancient Maya actively exploited forest resources, but the nature of these forest economies and their long-term impact on the landscape are still vigorously debated. We address this issue through charcoal analysis at the Classic site of Naachtun (Northern Guatemala), systematically analyzing the use of the Breadnut (Brosimum alicastrum) and sapodilla (Manilkara zapota) trees for domestic firewood over eight centuries. These two species are among the most economically and ecologically valuable for modern Maya people, and have been at the core of the debate concerning ancient Maya subsistence economy. We carry out an experimental anthracological study and discuss the implications of its results from a diachronic and taphonomic perspective for the ancient Maya site of Naachtun. We assume that sapodilla wood was intensively exploited as a primary source of fuel throughout the site's occupation history, and that its importance in the fuel economy until the city's abandonment was the product of careful management practices. Our results also indicate that Breadnut wood use may have been much more significant than generally perceived in the charcoal records of Maya Lowland sites. An increase in Breadnut wood use during the Late Classic, which corresponds to the demographic apogee of Naachtun, is evidence that this tree was of sufficient economic and/or ecological importance to be maintained despite the growing population pressure on the local forest. (source éditeur)
-
Experimental anthracology: Evaluating the role of combustion processes in the representivity of archaeological charcoal records in tropical forests, a case study from the Maya Lowlands
Journal of Archaeological Science: Reports, 2017Co-Authors: Lydie Dussol, Michelle Elliott, Isabelle Théry-parisotAbstract:Observation of archaeological charcoal records from Maya sites, and in particular, the Classic site of Naachtun (Northern Peten, Guatemala), indicates that certain woody taxa tend to occur in proportions that are highly inconsistent with their representation in the local forests today. We note this phenomenon for two taxa in particular: 1) the genus Manilkara, which dominates the charcoal assemblages of Naachtun, but grows in relatively low proportions in modern Central Lowlands forests, and 2) Breadnut (Brosimum alicastrum), which is widespread in the modern forests of the region, but whose wood is almost absent in the archaeological record. Based on ethno-graphic and ethnohistoric accounts, many researchers have argued that both of these trees would have played a major role in ancient Maya agroforestry. Therefore, it becomes necessary to determine how accurately the occurrence of Manilkara and Brosimum in archaeological charcoal records reflects their use in the past. We explore the hypothesis that combustion processes may create taphonomic biases that lead to the differential preservation of certain Maya Lowland tree taxa, and thus distort the representivity of the charcoal spectra recovered from ancient Maya sites. To evaluate this hypothesis, we conducted 35 experimental fires using five of the principal tree species of the modern forest around the site of Naachtun, including Manilkara and Brosimum. The charcoal assemblages produced through these fires were systematically identified and studied using quantitative methods. Our results indicate that significant differences exist among these taxa as a result of combustion, and that these phenomena are consistently observed for each taxon through multiple controlled trials. Thus, anthracological analyses are indeed appropriate for reconstructing human-environmental interactions in the Central Lowland forest, but certain predictable taphonomic biases must be taken into account when interpreting the charcoal data.
-
Ancient Maya sylviculture of Breadnut (Brosimum alicastrum Sw.) and sapodilla (Manilkara zapota (L.) P. Royen) at Naachtun (Guatemala): A reconstruction based on charcoal analysis
Quaternary International, 2017Co-Authors: Lydie Dussol, Michelle Elliott, Dominique Michelet, Philippe NondédéoAbstract:Abstract Researchers have long argued that the ancient Maya actively exploited forest resources, but the nature of these forest economies and their long-term impact on the landscape are still vigorously debated. We address this issue through charcoal analysis at the Classic site of Naachtun (Northern Guatemala), systematically analyzing the use of the Breadnut ( Brosimum alicastrum ) and sapodilla ( Manilkara zapota ) trees for domestic firewood over eight centuries. These two species are among the most economically and ecologically valuable for modern Maya people, and have been at the core of the debate concerning ancient Maya subsistence economy. We carry out an experimental anthracological study and discuss the implications of its results from a diachronic and taphonomic perspective for the ancient Maya site of Naachtun. We assume that sapodilla wood was intensively exploited as a primary source of fuel throughout the site's occupation history, and that its importance in the fuel economy until the city's abandonment was the product of careful management practices. Our results also indicate that Breadnut wood use may have been much more significant than generally perceived in the charcoal records of Maya Lowland sites. An increase in Breadnut wood use during the Late Classic, which corresponds to the demographic apogee of Naachtun, is evidence that this tree was of sufficient economic and/or ecological importance to be maintained despite the growing population pressure on the local forest.
Linda B L Lim - One of the best experts on this subject based on the ideXlab platform.
-
Breadnut peel as a highly effective low-cost biosorbent for methylene blue: Equilibrium, thermodynamic and kinetic studies
Arabian Journal of Chemistry, 2017Co-Authors: Linda B L Lim, Hei Ing Chieng, Namal Priyantha, Muhammad Khairud Dahri, D. T. B. Tennakoon, Montri SukluengAbstract:Abstract This work reports the potential use of peel of Breadnut, Artocarpus camansi , as an effective low-cost biosorbent for the removal of methylene blue (MB). Oven dried A. camansi peel (ACP), which had a point of zero charge at pH = 4.8, showed maximum biosorption capacity which was far superior to most literature reported fruit biomasses, including samples that have been activated. Isotherm studies on biosorption of MB onto ACP gave a maximum biosorption capacity of 409 mg g −1 . The Langmuir model was found to give the best fit among various isotherm models investigated and error analyses performed. Kinetics studies were fast with 50% dye being removed in less than 8 min from a 50 mg L −1 dye solution and further, kinetics followed the pseudo second order. Thermodynamic studies indicated that the biosorption process was both spontaneous and exothermic. Fourier transform infrared (FT-IR) of ACP before and after MB adsorption was investigated. It can be concluded that oven dried Breadnut peel is a highly promising low-cost biosorbent with great potential for the removal of MB.
-
Artocarpus camansi Blanco (Breadnut) core as low-cost adsorbent for the removal of methylene blue: equilibrium, thermodynamics, and kinetics studies
Desalination and Water Treatment, 2015Co-Authors: Linda B L Lim, Hei Ing Chieng, Namal Priyantha, Muhammad Khairud DahriAbstract:AbstractThis study investigates the adsorption characteristics of methylene blue (MB) on core of Breadnut, Artocarpus camansi Blanco. Oven-dried Artocarpus camansi core (ACC), with point of zero charge at pH 4.1, was found to be very effective in removing MB when compared to most literature reported fruit biomasses. Six isotherm models coupled with error analyses were used to investigate possible models of adsorption. Both the Langmuir and Sips models were found to give the best fit with maximum adsorption capacity, measured as mg of MB per g of adsorbent, of 369 and 328 mg g−1, respectively. Thermodynamics studies showed that the adsorption process was both spontaneous and exothermic. Fast kinetics, with 50% MB being removed within 5 min when 50 mg L−1 dye solution was used, showed pseudo-second-order. Fourier transform infrared, X-ray fluorescence, and scanning electron microscopic investigation of ACC before and after MB adsorption conclusively demonstrated that oven-dried Breadnut core has great poten...
-
enhancing adsorption capacity of toxic malachite green dye through chemically modified Breadnut peel equilibrium thermodynamics kinetics and regeneration studies
Environmental Technology, 2015Co-Authors: Hei Ing Chieng, Linda B L Lim, Namal PriyanthaAbstract:Breadnut skin, in both its unmodified (KS) and base-modified (BM-KS) forms, was investigated for its potential use as a low-cost adsorbent for the removal of toxic dye, malachite green (MG). Characterization of the adsorbents was carried out using scanning electron microscope, X-ray fluorescence and Fourier transform infra-red spectroscopy. Batch adsorption experiments, carried out under optimized conditions, for the adsorption of MG were fitted using five isotherm models (Langmuir, Freundlich, Dubinin-Radushkevich, Temkin and Sips) and six error functions to determine the best-fit model. The adsorption capacity was greatly enhanced when Breadnut skin was chemically modified with NaOH, leading to an adsorption capacity of 353.0 mg g−1, that was far superior to most reported adsorbents for the removal of MG. Thermodynamics studies indicated that the adsorption of MG was spontaneous on KS and BM-KS, and the reactions were endothermic and exothermic, respectively. Kinetics studies showed that both followed t...
-
Enhancing adsorption capacity of toxic malachite green dye through chemically modified Breadnut peel: equilibrium, thermodynamics, kinetics and regeneration studies.
Environmental technology, 2014Co-Authors: Hei Ing Chieng, Linda B L Lim, Namal PriyanthaAbstract:Breadnut skin, in both its unmodified (KS) and base-modified (BM-KS) forms, was investigated for its potential use as a low-cost adsorbent for the removal of toxic dye, malachite green (MG). Characterization of the adsorbents was carried out using scanning electron microscope, X-ray fluorescence and Fourier transform infra-red spectroscopy. Batch adsorption experiments, carried out under optimized conditions, for the adsorption of MG were fitted using five isotherm models (Langmuir, Freundlich, Dubinin-Radushkevich, Temkin and Sips) and six error functions to determine the best-fit model. The adsorption capacity was greatly enhanced when Breadnut skin was chemically modified with NaOH, leading to an adsorption capacity of 353.0 mg g(-1), that was far superior to most reported adsorbents for the removal of MG. Thermodynamics studies indicated that the adsorption of MG was spontaneous on KS and BM-KS, and the reactions were endothermic and exothermic, respectively. Kinetics studies showed that both followed the pseudo-second order. Regeneration experiments on BM-KS indicated that its adsorption capacity was still maintained at>90% even after five cycles. It can be concluded that NaOH-modified breadfruit skin has great potential to be utilized in real-life application as a low-cost adsorbent for the removal of MG in wastewater treatment.
Hei Ing Chieng - One of the best experts on this subject based on the ideXlab platform.
-
Breadnut peel as a highly effective low-cost biosorbent for methylene blue: Equilibrium, thermodynamic and kinetic studies
Arabian Journal of Chemistry, 2017Co-Authors: Linda B L Lim, Hei Ing Chieng, Namal Priyantha, Muhammad Khairud Dahri, D. T. B. Tennakoon, Montri SukluengAbstract:Abstract This work reports the potential use of peel of Breadnut, Artocarpus camansi , as an effective low-cost biosorbent for the removal of methylene blue (MB). Oven dried A. camansi peel (ACP), which had a point of zero charge at pH = 4.8, showed maximum biosorption capacity which was far superior to most literature reported fruit biomasses, including samples that have been activated. Isotherm studies on biosorption of MB onto ACP gave a maximum biosorption capacity of 409 mg g −1 . The Langmuir model was found to give the best fit among various isotherm models investigated and error analyses performed. Kinetics studies were fast with 50% dye being removed in less than 8 min from a 50 mg L −1 dye solution and further, kinetics followed the pseudo second order. Thermodynamic studies indicated that the biosorption process was both spontaneous and exothermic. Fourier transform infrared (FT-IR) of ACP before and after MB adsorption was investigated. It can be concluded that oven dried Breadnut peel is a highly promising low-cost biosorbent with great potential for the removal of MB.
-
Artocarpus camansi Blanco (Breadnut) core as low-cost adsorbent for the removal of methylene blue: equilibrium, thermodynamics, and kinetics studies
Desalination and Water Treatment, 2015Co-Authors: Linda B L Lim, Hei Ing Chieng, Namal Priyantha, Muhammad Khairud DahriAbstract:AbstractThis study investigates the adsorption characteristics of methylene blue (MB) on core of Breadnut, Artocarpus camansi Blanco. Oven-dried Artocarpus camansi core (ACC), with point of zero charge at pH 4.1, was found to be very effective in removing MB when compared to most literature reported fruit biomasses. Six isotherm models coupled with error analyses were used to investigate possible models of adsorption. Both the Langmuir and Sips models were found to give the best fit with maximum adsorption capacity, measured as mg of MB per g of adsorbent, of 369 and 328 mg g−1, respectively. Thermodynamics studies showed that the adsorption process was both spontaneous and exothermic. Fast kinetics, with 50% MB being removed within 5 min when 50 mg L−1 dye solution was used, showed pseudo-second-order. Fourier transform infrared, X-ray fluorescence, and scanning electron microscopic investigation of ACC before and after MB adsorption conclusively demonstrated that oven-dried Breadnut core has great poten...
-
enhancing adsorption capacity of toxic malachite green dye through chemically modified Breadnut peel equilibrium thermodynamics kinetics and regeneration studies
Environmental Technology, 2015Co-Authors: Hei Ing Chieng, Linda B L Lim, Namal PriyanthaAbstract:Breadnut skin, in both its unmodified (KS) and base-modified (BM-KS) forms, was investigated for its potential use as a low-cost adsorbent for the removal of toxic dye, malachite green (MG). Characterization of the adsorbents was carried out using scanning electron microscope, X-ray fluorescence and Fourier transform infra-red spectroscopy. Batch adsorption experiments, carried out under optimized conditions, for the adsorption of MG were fitted using five isotherm models (Langmuir, Freundlich, Dubinin-Radushkevich, Temkin and Sips) and six error functions to determine the best-fit model. The adsorption capacity was greatly enhanced when Breadnut skin was chemically modified with NaOH, leading to an adsorption capacity of 353.0 mg g−1, that was far superior to most reported adsorbents for the removal of MG. Thermodynamics studies indicated that the adsorption of MG was spontaneous on KS and BM-KS, and the reactions were endothermic and exothermic, respectively. Kinetics studies showed that both followed t...
-
Enhancing adsorption capacity of toxic malachite green dye through chemically modified Breadnut peel: equilibrium, thermodynamics, kinetics and regeneration studies.
Environmental technology, 2014Co-Authors: Hei Ing Chieng, Linda B L Lim, Namal PriyanthaAbstract:Breadnut skin, in both its unmodified (KS) and base-modified (BM-KS) forms, was investigated for its potential use as a low-cost adsorbent for the removal of toxic dye, malachite green (MG). Characterization of the adsorbents was carried out using scanning electron microscope, X-ray fluorescence and Fourier transform infra-red spectroscopy. Batch adsorption experiments, carried out under optimized conditions, for the adsorption of MG were fitted using five isotherm models (Langmuir, Freundlich, Dubinin-Radushkevich, Temkin and Sips) and six error functions to determine the best-fit model. The adsorption capacity was greatly enhanced when Breadnut skin was chemically modified with NaOH, leading to an adsorption capacity of 353.0 mg g(-1), that was far superior to most reported adsorbents for the removal of MG. Thermodynamics studies indicated that the adsorption of MG was spontaneous on KS and BM-KS, and the reactions were endothermic and exothermic, respectively. Kinetics studies showed that both followed the pseudo-second order. Regeneration experiments on BM-KS indicated that its adsorption capacity was still maintained at>90% even after five cycles. It can be concluded that NaOH-modified breadfruit skin has great potential to be utilized in real-life application as a low-cost adsorbent for the removal of MG in wastewater treatment.
K. O. Ipinmoroti - One of the best experts on this subject based on the ideXlab platform.
-
Processing Effects on Some Antinutritional Factors and In vitro Multienzyme Protein Digestibility (IVPD) of Three Tropical Seeds: Breadnut (Artocarpus altilis), Cashewnut (Anacardium occidentale) and Fluted Pumpkin (Telfairia occidentalis)
2015Co-Authors: T. N. Fagbemi, A. A. Oshodi, K. O. IpinmorotiAbstract:Abstract: Mature seeds of Breadnut, cashewnut and fluted pumpkin were processed in the laboratory into the raw dried, boiled, fermented, germinated and roasted seeds. Differently processed seeds were dried at 50 C, ground and sieved through 500Fm sieves. The seed flours were evaluated for trypsin inhibitoro activity, tannin, phosphorus compounds and in vitro multienzyme protein digestibility (IVPD). The results show that processing significantly (P = 0.05) affected the antinutritional factors in the seed flours. Breadnut flours contain 2.8-5.3g/kg phytic acid, 5.8-9.2g/kg tannin and 0.9-8.1mg/g flour of trypsin inhibitor activity. Cashewnut flours contain 6.0-9.9g/kg phytic acid, 5.1-13.3g/kg tannin and 0.8-2.5mg/g flour of trypsin inhibitor activity. Fluted pumpkin seed flours contain 2.8-13.8g/kg phytic acid, 7.5-19.1g/kg tannin and 0.0-11.0mg/g flour of trypsin inhibitor activity. Fermentation is the most effective processing method to reduce phytic acid and trypsin inhibitor activity while boiling is most effective in reducing the tannin content. The result of IVPD of the seeds generally show that the boiled samples are the most digestible followed by the fermented samples while the raw dried/germinated samples are the least. The order of digestibility of the three seeds is fluted pumpkin (72.0- 86.0%)> cashewnut (74.3- 82.9%)> Breadnut flour (71.3- 78.3%). Processing techniques used reduced the antinutritional factors in the seeds and improve its IVPD when compared with the raw dried seed flours. Key words: Processing antinutritional factors, in vitro protein digestibility, Breadnut flour, fluted pumpki
-
processing effects on some antinutritional factors and in vitro multienzyme protein digestibility ivpd of three tropical seeds Breadnut artocarpus altilis cashewnut anacardium occidentale and fluted pumpkin telfairia occidentalis
Pakistan Journal of Nutrition, 2005Co-Authors: Tayo N. Fagbemi, A. A. Oshodi, K. O. IpinmorotiAbstract:2 Abstract: Mature seeds of Breadnut, cashewnut and fluted pumpkin were processed in the laboratory into the raw dried, boiled, fermented, germinated and roasted seeds. Differently processed seeds were dried at 50 C, gro und and sieved through 500µm sieves. The seed flours were evaluated for trypsin inhibitor o activity, tannin, phosphorus compounds and in vitro multienzyme protein digestibility (IVPD). The results show that processing significantly (P = 0.05) affected the antinutritional factors in the seed flours. Breadnut flours contain 2.8-5.3g/kg phytic acid, 5.8-9.2g/kg tannin and 0.9-8.1mg/g flour of trypsin inhibitor activity. Cashewnut flours contain 6.0-9.9g/kg phytic acid, 5.1-13.3g/kg tannin and 0.8-2.5mg/g flour of trypsin inhibitor activity. Fluted pumpkin seed flours contain 2.8-13.8g/kg phytic acid, 7.5-19.1g/kg tannin and 0.0-11.0mg/g flour of trypsin inhibitor activity. Fermentation is the most effective processing method to reduce phytic acid and trypsin inhibitor activity while boiling is most effective in reducing the tannin content. The result of IVPD of the seeds generally show that the boiled samples are the most digestible followed by the fermented samples while the raw dried/germinated samples are the least. The order of digestibility of the three seeds is fluted pumpkin (72.0 - 86.0%) > cashewnut (74.3 - 82.9%) > Breadnut flour (71.3 - 78.3%). Processing techniques used reduced the antinutritional factors in the seeds and improve its IVPD when compared with the raw dried seed flours.
-
Chemical composition, amino acid analysis and functional properties of Breadnut (Artocarpus altilis) flour
Nahrung Food, 1999Co-Authors: A. A. Oshodi, K. O. Ipinmoroti, Tayo N. FagbemiAbstract:Breadnut flour was processed and evaluated in the laboratory for chemical composition, amino acid and functional properties. The results showed that Breadnut flour contained high quality protein with total essential amino acid of 55.1% which is comparable with that of soya flour and egg; while it is better than most nuts and oil seeds. Most of the essential amino acids satisfy the range for infant requirement or even higher than the maximum value of the range. The most predominant amino acids in Breadnut are valine, glutamic acid and aspartic acid, while the limiting amino acid is methionine + cystine. Breadnut protein has minimum solubility at pH 5 and maximum solubility at pH 8. Potassium is the most abundant among the minerals determined (0.7 g/100 g) while magnesium (0.08 g/100 g) is the least. The result of the functional properties showed that the flour may be useful as a thickener and protein supplement in diet.