The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Fedah E Mohamed - One of the best experts on this subject based on the ideXlab platform.
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functional bioactive biochemical and physicochemical properties of the dolichos Lablab bean
Food & Function, 2017Co-Authors: Hosam M Habib, Serah Theuri, Ehab Kheadr, Fedah E MohamedAbstract:The underutilized Kenyan variety of Dolichos Lablab bean seeds serves as a good source of nutrients. This study was undertaken for the first time to address the limited knowledge regarding the bioactive, biochemical, physicochemical, and functional properties of Dolichos Lablab beans. Proximate analysis, mineral, total and free amino acid profiles, total protein, total dietary and profile of fiber, carotenoids and fat soluble vitamins, total phenolics, and total flavonoids were evaluated. The results clearly show that Dolichos Lablab beans contain many health-promoting components, such as fiber, proteins, minerals, and numerous phytochemicals endowed with useful biological activities, that allow it to contribute in a relevant way to the daily intake of these nutrients.
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dna and bsa damage inhibitory activities and anti acetylcholinesterase anti porcine α amylase and antioxidant properties of dolichos Lablab beans
Food & Function, 2017Co-Authors: Hosam M Habib, Serah Theuri, Ehab Kheadr, Fedah E MohamedAbstract:The underutilized Kenyan variety of Dolichos Lablab bean seeds serve as a good source of natural antioxidants, which can probably be effective in reducing the risk of occurrence of several diseases. This study was undertaken for the first time to address the limited knowledge regarding the antioxidant activities of Lablab beans. Moreover, their DNA damage inhibitory activity, bovine serum albumin (BSA) damage inhibitory activity, and the inhibition of acetylcholinesterase and porcine α-amylase were also investigated. The antioxidant capacity of Dolichos Lablab bean seeds extracted with methanol, water or methanol/water combination was evaluated by the ferric-reducing antioxidant power (FRAP) assay, free radical-scavenging activity, 1,1-diphenyl-2-picrylhydrazyl (DPPH), nitric oxide (NO) radical-scavenging assay, and 2,20-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). Results reported in the present study indicate that water, methanol and water/methanol extracts of Lablab bean flour exhibited good antioxidant activity by effectively scavenging various free radicals, such as DPPH, NO, and ABTS radicals. The extracts also exhibited protective effects against DNA and BSA damage and inhibitory effects on porcine α-amylase. Findings of this study suggest that extracts from the Lablab bean flour would have potential application in food supplements, and pharmaceutical and cosmetic industries.
Kenneth A. Albrecht - One of the best experts on this subject based on the ideXlab platform.
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fermentability of corn Lablab bean mixtures from different planting densities
Animal Feed Science and Technology, 2009Co-Authors: Francisco E Contrerasgovea, Kevin L. Armstrong, R E Muck, Kenneth A. AlbrechtAbstract:Abstract This study was conducted to determine silage fiber characteristics and fermentation profiles of corn ( Zea mays L.) grown in mixture with Lablab bean [ Lablab purpureus (L.) Sweet] at different planting densities. The experiment was conducted in two environments in 2005. ‘Rongai’ Lablab bean and corn were intercropped at eight different planting densities; 20/80, 40/0, 40/40, 40/80, 60/0, 60/40, 60/80, and 80/80 thousand corn/Lablab bean plants/ha. Corn in monoculture or in mixture with bean was harvested between 1/2 and 3/4 milk line. Two 1-L glass jar mini-silos per treatment per replicate plot were filled at a density of 500 g/L, eight jars per treatment per location, and stored for 40 days at room temperature (∼22 °C). At the time of ensiling a 500-g fresh sub-sample was also taken for dry matter (DM) and initial characterization of the corn and corn–bean mixtures. Each silo was analyzed for fiber characteristics, pH, and fermentation products. Silage crude protein (CP) concentration was on average 17.5% (86.4 g/kg DM) greater in the mixture than monoculture corn (73.5 g/kg DM). The in vitro true digestible DM (IVTDDM) concentrations in the mixtures were on average 4.6% less (796 g/kg DM) than that of monoculture corn (834 g/kg DM), but neutral detergent fiber digestibility was not different between monoculture corn and corn–Lablab mixtures (P>0.05). Lactate concentration was 21.2% higher in the corn–Lablab bean mixtures (60.5 g/kg DM) than monoculture corn (49.9 g/kg DM). The contribution of the Lablab bean to the mixture increased as corn planting density decreased. Thus the maximum benefits to increased CP occurred in the mixtures with the lowest corn planting densities, but those mixtures also had the greatest reductions in IVTDDM. However all treatments fermented well in spite of significant (P
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effect of plant density on forage yield and quality of intercropped corn and Lablab bean
Crop Science, 2008Co-Authors: Kevin L. Armstrong, Kenneth A. AlbrechtAbstract:Low crude protein (CP) concentration in corn (Zea mays L.) silage is its major dietary limitation in dairy rations. In this experiment, four densities of corn (20,000, 40,000, 60,000, and 80,000 plants ha -1 ) and four densities of Lablab bean [Lablab purpureus (L.) Sweet] (0, 40,000, 80,000, 120,000 plants ha -1 ) were intercropped to determine the optimal planting density in terms of forage yield, nutritive value, estimated milk production, and forage nutrient value. Experiments were conducted near Arlington and Lancaster, WI. Corn was sown in late April and Lablab bean was sown in rows 8 cm beside corn rows 2 wk after corn planting. Averaged over locations, forage dry matter (DM) yield ranged from 11 Mg ha -1 to 20 Mg ha -1 as corn plant density increased from 20,000 to 80,000 plants ha -1 . Lablab bean increased CP concentration by 22 g kg -1 DM between corn densities of 80,000 plants ha -1 and 20,000 plants ha -1 at a bean density of 120,000 plants ha -1 . Calculated milk ha -1 values ranged from 17,500 kg ha -1 to 34,400 kg ha -1 as corn plant density increased from 20,000 to 80,000 plants ha -1 . This experiment does not show benefit to addition of Lablab bean into high producing corn stands. Corn sown at a density of 80,000 plants ha -1 and 0 bean plants ha -1 is recommended to maximize forage DM yield, milk ha -1 , and crop value. Alternatively, addition of Lablab bean into low density corn stands did increase CP concentration and feed nutrient value of the forage.
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Intercropping Corn with Lablab Bean, Velvet Bean, and Scarlet Runner Bean for Forage
Crop Science, 2008Co-Authors: Kevin L. Armstrong, Kenneth A. Albrecht, Joseph G. Lauer, Heathcliffe RidayAbstract:This experiment was designed to determine if intercropping corn (Zea mays L.) with climbing beans is a viable option to increase crude protein (CP) concentration in forage rather than purchasing costly protein supplements for livestock rations. In these experiments, corn was intercropped with three beans—Lablab bean [Lablab purpureus (L.) Sweet], velvet bean [Mucuna pruriens (L.) D.C.], and scarlet runner bean (Phaseolus coccineus L.)—or grown in monoculture near Arlington and Lancaster, WI. Corn was sown in early May and late April in 2004 and 2005, respectively, and later thinned to 55,000 (low density) or 82,500 (normal density) plants ha –1 . Beans were sown in rows 8 cm on one side of the corn rows at 82,500 plants ha –1 2 or 4 wk after corn planting. Averaged over four environments, mixture forage dry matter (DM) yields were similar. However the velvet bean and scarlet runner bean mixtures produced signifi cantly higher forage DM yield, 1.2 Mg ha –1 and 0.89 Mg ha –1 more, respectively, in the late bean planting treatment. Beans, except scarlet runner bean, which was damaged by mold and insects, increased the CP concentration of all mixtures, with the greatest increases from the Lablab bean (13%) and velvet bean (16%). The experiments show that Lablab bean grown with corn has the greatest potential of the three beans to increase CP concentration above monoculture corn, without compromising forage yield or calculated milk ha –1 and increasing forage nutrient value.
Yumshing Wong - One of the best experts on this subject based on the ideXlab platform.
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effects of cooking on content of amino acids and antinutrients in three chinese indigenous legume seeds
Journal of the Science of Food and Agriculture, 1997Co-Authors: Chifai Chau, Peter C K Cheung, Yumshing WongAbstract:The effects of domestic cooking on the content of amino acids and antinutrients of Phaseolus angularis, Phaseolus calcaratus and Dolichos Lablab seeds were evaluated. Heat treatment (30 min) caused significant declines (P<0·05) in the apparent recovery of most of the essential amino acids except leucine and phenylalanine for P angularis, and except phenylalanine for P calcaratus. Cooking D Lablab seeds (60 min) also resulted in a significant reduction (P<0·05) in the apparent recovery of all the essential amino acids except leucine, histidine, lysine and threonine. Increased cooking time for P angularis (60 min), P calcaratus (60 min) and D Lablab (120 min) led to a lower apparent recovery of methionine (28·9–31·6%) and cystine (17·1–19·3%). Even with increased cooking times, the total essential amino acid levels in all three cooked seeds remained higher than that of the FAO/WHO requirement, except for methionine and cystine. Cooking (60 min) was found to be effective in reducing the tannin contents of P angularis, P calcaratus and D Lablab seeds by 70·6, 64·6 and 74·6%, respectively. Upon cooking, phytate and trypsin inhibitory activity in different seeds were also reduced to different extents depending on the cooking times. ©1997 SCI
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functional properties of protein concentrates from three chinese indigenous legume seeds
Journal of Agricultural and Food Chemistry, 1997Co-Authors: Chifai Chau, Peter C K Cheung, Yumshing WongAbstract:The functional properties of the protein concentrates (PCs) from Phaseolus angularis, Phaseolus calcaratus, and Dolichos Lablab seeds were investigated and compared with those of soybean PC. The minimum nitrogen solubilities of P. angularis and P. calcaratus PCs were at pH 5, while that of D. Lablab PC was at pH 4. These three PCs had lower viscosities, similar emulsifying activities and emulsion stabilities, and higher water- and oil-holding capacities and foam capacities than soybean PC. Their minimum emulsifying activities, minimum foam capacities, and maximum foam stabilities were at pH 4. Moreover, emulsion stabilities of these three PCs were high (above 93.2%) over the pH range of 2−10. Keywords: Phaseolus angularis; Phaseolus calcaratus; Dolichos Lablab; functional property; protein concentrate
Hosam M Habib - One of the best experts on this subject based on the ideXlab platform.
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functional bioactive biochemical and physicochemical properties of the dolichos Lablab bean
Food & Function, 2017Co-Authors: Hosam M Habib, Serah Theuri, Ehab Kheadr, Fedah E MohamedAbstract:The underutilized Kenyan variety of Dolichos Lablab bean seeds serves as a good source of nutrients. This study was undertaken for the first time to address the limited knowledge regarding the bioactive, biochemical, physicochemical, and functional properties of Dolichos Lablab beans. Proximate analysis, mineral, total and free amino acid profiles, total protein, total dietary and profile of fiber, carotenoids and fat soluble vitamins, total phenolics, and total flavonoids were evaluated. The results clearly show that Dolichos Lablab beans contain many health-promoting components, such as fiber, proteins, minerals, and numerous phytochemicals endowed with useful biological activities, that allow it to contribute in a relevant way to the daily intake of these nutrients.
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dna and bsa damage inhibitory activities and anti acetylcholinesterase anti porcine α amylase and antioxidant properties of dolichos Lablab beans
Food & Function, 2017Co-Authors: Hosam M Habib, Serah Theuri, Ehab Kheadr, Fedah E MohamedAbstract:The underutilized Kenyan variety of Dolichos Lablab bean seeds serve as a good source of natural antioxidants, which can probably be effective in reducing the risk of occurrence of several diseases. This study was undertaken for the first time to address the limited knowledge regarding the antioxidant activities of Lablab beans. Moreover, their DNA damage inhibitory activity, bovine serum albumin (BSA) damage inhibitory activity, and the inhibition of acetylcholinesterase and porcine α-amylase were also investigated. The antioxidant capacity of Dolichos Lablab bean seeds extracted with methanol, water or methanol/water combination was evaluated by the ferric-reducing antioxidant power (FRAP) assay, free radical-scavenging activity, 1,1-diphenyl-2-picrylhydrazyl (DPPH), nitric oxide (NO) radical-scavenging assay, and 2,20-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). Results reported in the present study indicate that water, methanol and water/methanol extracts of Lablab bean flour exhibited good antioxidant activity by effectively scavenging various free radicals, such as DPPH, NO, and ABTS radicals. The extracts also exhibited protective effects against DNA and BSA damage and inhibitory effects on porcine α-amylase. Findings of this study suggest that extracts from the Lablab bean flour would have potential application in food supplements, and pharmaceutical and cosmetic industries.
Hakan Bozdoğan - One of the best experts on this subject based on the ideXlab platform.
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Demographic parameters of the predaceous ladybird, Hippodamia variegata (Goeze), on the aphid species, Aphis craccivora (Koch), reared on four host plants
SpringerOpen, 2018Co-Authors: Ahmad Pervez, Pratibha Awasthi, Hakan BozdoğanAbstract:Abstract The reproductive and demographic attributes of the aphidophagous ladybird, Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae), when fed on the aphid species, Aphis craccivora (Koch), reared on four host plants, viz. Dolichos Lablab L., Vigna unguiculata L. Walp, Cajanus cajan (L.) Millsp., and Ranunculus sceleratus L., were investigated in the laboratory to find host suitability for the production of the ladybird. Results indicated that there was a significant effect of host plant on both reproductive and demographic parameters of the predator. The host plant suitability was in the rank order D. Lablab = V. unguiculata > C. cajan > R. sceleratus. This ladybird started reproducing very early and laid a high number of eggs for a longer period of time when the adults were fed on aphids raised on D. Lablab and V. unguiculata. Both the fecundity and percent egg hatching increased significantly in the case of the abovementioned two host plants. Similar host plant effects were found on demographic parameters of H. variegata, with significantly high values of net reproductive rate (r m), short generation (T c), and doubling times (D.T.) on D. Lablab and V. unguiculata. Age-specific fecundity of H. variegata at all host plant treatments was triangular in function with an initial increase in ovipositional rate with age, followed by attainment of peak and gradual decline till egg laying ceases. These peaks were higher on the host plant treatments, D. Lablab and V. unguiculata. Sub-optimal values of both reproductive and demographic parameters were found on the host plant, R. sceleratus. Thus, it could be concluded that both D. Lablab and V. unguiculata were the suitable host plants to raise aphid, A. craccivora, for the augmentative rearing of the ladybird, H. variegata
