The Experts below are selected from a list of 1536 Experts worldwide ranked by ideXlab platform
Vincenza Calabro - One of the best experts on this subject based on the ideXlab platform.
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Lemonene recovery from waste Lemon Peels with supercritical extraction
Euro-Mediterranean Conference, 2017Co-Authors: Catia Giovanna Lopresto, Alessandra Meluso, Giuseppe Di Sanzo, Vincenza CalabroAbstract:Essential oils of plants and herbs are important natural sources of bioactive substances. In the Mediterranean basin there are numerous and varied species of great interest from such a point of view.
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a non conventional method to extract d limonene from waste Lemon Peels and comparison with traditional soxhlet extraction
Separation and Purification Technology, 2014Co-Authors: Catia Giovanna Lopresto, Francesca Petrillo, Alessandro Alberto Casazza, Bahar Aliakbarian, Patrizia Perego, Vincenza CalabroAbstract:Abstract Waste citrus Peels can be used as source of several bioactive compounds. Among these, D -limonene is the major constituent in Lemon essential oil and is of great interest in several fields. With the aim of optimizing D -limonene extraction from Lemon Peels after citrus processing, a non-conventional solvent extraction was studied. Hexane was used as solvent at high pressure and temperature and influence of extraction time, temperature–pressure and matrix/solvent ratio ( M ) on yield of D -limonene was analyzed by a statistical approach applied to a three-level full factorial design (3 3 ). The highest yield was reached when extraction was performed with M = 1:15 at 150 °C for 30 min (3.56%). Furthermore, a response surface methodology (RSM) was used and experimental results were fitted by a second-order polynomial equation. The effects of drying pre-treatment and particle size were also evaluated in this work. The effectiveness of this innovative method in extraction of citrus essential oils – and, in particular, of D -limonene – has been evaluated and compared to conventional Soxhlet extraction. High pressure – high temperature extraction (HPTE) of D -limonene from Lemon Peels was better than Soxhlet extraction even with low matrix/solvent extraction (1:4) in terms of energy saving (0.6 kW h vs 2.5 kW h), extraction time (30 min vs 4 h) and product yield (2.97% vs 0.95%).
Baysal Taner - One of the best experts on this subject based on the ideXlab platform.
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Optimization of process conditions for vacuum microwave drying of Lemon peel by response surface methodology: Quality characteristics and volatile compounds
'Wiley', 2019Co-Authors: Tekgul Yeliz, Baysal TanerAbstract:WOS: 000480235800027This study evaluated for to optimization of dried Lemon peel production conditions in vacuum microwave dryer as a novel drying technique by using response surface methodology (RSM) and to observation of its effects on the quality and volatile compounds. The optimum vacuum power (584 watt) and temperature (50 degrees C) according to the highest b* value and limonene content while the minimum drying time occurs were estimated using RSM. The volatile constituents of fresh and dried Lemon Peels were investigated by headspace-solid phase micro extraction-gas chromatography mass spectrometry, as a result, 32 and 34 compounds were identified, respectively. Furthermore, quality characteristics of the optimally developed Lemon powder were studied. Dried Peels had higher conservation of total phenolic compounds than fresh samples. Drying significantly affected the volatile compounds, antioxidant activity, total carotenoid, and ascorbic acid contents of Lemon peel powders. Practical applications Drying is an important food preservation method. However, the effets of drying methods and conditions on foods quality are not clear. This study presents optimum conditions for drying Lemon Peels in vacuum microwave dryer and appreciates effect of drying system on some quality characteristics and volatile compounds. The data of present study will give information to food industry for installing industrial scale drying systems for aromatic products. It will be contributed to the improvement of firms' conditions that already in production
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Comparative evaluation of quality properties and volatile profiles of Lemon Peels subjected to different drying techniques
'Wiley', 2018Co-Authors: Tekgul Yeliz, Baysal TanerAbstract:WOS: 000461109100024In this study, effects of different drying techniques (open-air drying [AD], hot air drying [HAD], microwave drying [MWD], and freeze-drying [FD]) on quality properties and volatile compound profiles in Lemon Peels were examined. For those purpose, water-holding capacity, water activity, bulk density, color, pH, titratable acidity, total phenolic content, antioxidant activity, ascorbic acid content, total carotenoid content, and volatile compounds of dried Lemon Peels were determined. Among the drying methods, the highest retention of phenolics, ascorbic acid, and carotenoids were provided by FD. A total of 56 volatile compounds were identified in dried Lemon peel powders. MWD samples contained the largest number of volatiles, whereas HAD samples had the highest volatile content. Principal component analysis on volatiles indicated that there is a convenient relation between the AD, HAD, and FD samples. Practical applicationsDifferent drying techniques play significant roles in the storage of fruits and vegetables. However, the effect of these methods on the quality of various foods is still not clear. This article indicates the effects of open-air, hot air, microwave, and freeze-drying methods on certain quality parameters and volatile compounds of Lemon Peels. The obtained data from the present study will provide valuable information for setting up industrial-scale dryer systems for products with high volatile content. It will provide contribution to the improvement in food companies on their production conditions.Scientific and Technical Research Council of Turkey, TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [117 O 735]The Scientific and Technical Research Council of Turkey, TUBITAK (Project number: 117 O 735
Catia Giovanna Lopresto - One of the best experts on this subject based on the ideXlab platform.
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Lemonene recovery from waste Lemon Peels with supercritical extraction
Euro-Mediterranean Conference, 2017Co-Authors: Catia Giovanna Lopresto, Alessandra Meluso, Giuseppe Di Sanzo, Vincenza CalabroAbstract:Essential oils of plants and herbs are important natural sources of bioactive substances. In the Mediterranean basin there are numerous and varied species of great interest from such a point of view.
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a non conventional method to extract d limonene from waste Lemon Peels and comparison with traditional soxhlet extraction
Separation and Purification Technology, 2014Co-Authors: Catia Giovanna Lopresto, Francesca Petrillo, Alessandro Alberto Casazza, Bahar Aliakbarian, Patrizia Perego, Vincenza CalabroAbstract:Abstract Waste citrus Peels can be used as source of several bioactive compounds. Among these, D -limonene is the major constituent in Lemon essential oil and is of great interest in several fields. With the aim of optimizing D -limonene extraction from Lemon Peels after citrus processing, a non-conventional solvent extraction was studied. Hexane was used as solvent at high pressure and temperature and influence of extraction time, temperature–pressure and matrix/solvent ratio ( M ) on yield of D -limonene was analyzed by a statistical approach applied to a three-level full factorial design (3 3 ). The highest yield was reached when extraction was performed with M = 1:15 at 150 °C for 30 min (3.56%). Furthermore, a response surface methodology (RSM) was used and experimental results were fitted by a second-order polynomial equation. The effects of drying pre-treatment and particle size were also evaluated in this work. The effectiveness of this innovative method in extraction of citrus essential oils – and, in particular, of D -limonene – has been evaluated and compared to conventional Soxhlet extraction. High pressure – high temperature extraction (HPTE) of D -limonene from Lemon Peels was better than Soxhlet extraction even with low matrix/solvent extraction (1:4) in terms of energy saving (0.6 kW h vs 2.5 kW h), extraction time (30 min vs 4 h) and product yield (2.97% vs 0.95%).
Michael Z Chen - One of the best experts on this subject based on the ideXlab platform.
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identification synthesis and characterization of novel sulfur containing volatile compounds from the in depth analysis of lisbon Lemon Peels citrus limon l burm f cv lisbon
Journal of Agricultural and Food Chemistry, 2015Co-Authors: Robert J Cannon, Arkadiusz Kazimierski, Nicole L Curto, Laurence Trinnaman, Adam Jan Janczuk, David O Agyemang, Neil C Da Costa, Michael Z ChenAbstract:Lemons (Citrus limon) are a desirable citrus fruit grown and used globally in a wide range of applications. The main constituents of this sour-tasting fruit have been well quantitated and characterized. However, additional research is still necessary to better understand the trace volatile compounds that may contribute to the overall aroma of the fruit. In this study, Lisbon Lemons (C. limon L. Burm. f. cv. Lisbon) were purchased from a grove in California, USA, and extracted by liquid–liquid extraction. Fractionation and multidimensional gas chromatography–mass spectrometry were utilized to separate, focus, and enhance unidentified compounds. In addition, these methods were employed to more accurately assign flavor dilution factors by aroma extract dilution analysis. Numerous compounds were identified for the first time in Lemons, including a series of branched aliphatic aldehydes and several novel sulfur-containing structures. Rarely reported in citrus Peels, sulfur compounds are known to contribute sig...
Akash Sharma - One of the best experts on this subject based on the ideXlab platform.
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• COMPARATIVE STUDY OF ETHANOLIC EXTRACT OF Lemon GRASS & Lemon Peels BY AROMA THERAPY ON STRESS INDUCED ANXIETY ON MICE
2018Co-Authors: Naina Dubey, Akash SharmaAbstract:A nxiety disorder is common mental disorders that share extreme or pathological anxiety as the primary disturbance in mood or emotional tone. The imbalances in the neurotransmitters like GABA, Serotonin, nor adrenaline, dopamine etc. mainly causes anxiety disorders. Anxiety is a major neurodegenerative disorder in which biochemical parameters like plasma nitrate, MAO-A & MAO-B, Ach; AchE; are mainly affected. The activity of Lemon grass and Lemon peel are analgesic, antibacterial, antioxidant. The study aimed for Comparative Study of Ethanolic Extract of Lemon grass & Lemon Peels by Aroma Therapy on Stress Induced Anxiety on Mice. Clinical experience in aromatherapy suggests that beneficial effects of aromas or fragrances are not only exerted by inhalation of the vapor but also by absorption of fragrance molecules through the skin. The studies of these herbs (Lemon grass and Lemon peel) were carried out through estimation of their flavanoid content. Behavioral and biochemical parameters are the primary evidence to confirm anxiety as well as anti-anxiety effect of treatments. All the parameters are based on pathophysilogy of anxiety because anxiety or fear is evaluated through stress or immobilization of animal like mice and rats. On the basis of behavioral parameters as well as biochemical estimation, study concludes that Lemon Grass showed significant effect in plasma nitrates and other chemical messenger in anxiety at dose of 200mg/kg compared with Lemon Peel extract.
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comparative study of ethanolic extract of Lemon grass Lemon Peels by aroma therapy on stress induced anxiety on mice
International Journal of Pharmaceutical Archive ISSN: 2319-7226, 2018Co-Authors: Naina Dubey, Akash SharmaAbstract:A nxiety disorder is common mental disorders that share extreme or pathological anxiety as the primary disturbance in mood or emotional tone. The imbalances in the neurotransmitters like GABA, Serotonin, nor adrenaline, dopamine etc. mainly causes anxiety disorders. Anxiety is a major neurodegenerative disorder in which biochemical parameters like plasma nitrate, MAO-A & MAO-B, Ach; AchE; are mainly affected. The activity of Lemon grass and Lemon peel are analgesic, antibacterial, antioxidant. The study aimed for Comparative Study of Ethanolic Extract of Lemon grass & Lemon Peels by Aroma Therapy on Stress Induced Anxiety on Mice. Clinical experience in aromatherapy suggests that beneficial effects of aromas or fragrances are not only exerted by inhalation of the vapor but also by absorption of fragrance molecules through the skin. The studies of these herbs (Lemon grass and Lemon peel) were carried out through estimation of their flavanoid content. Behavioral and biochemical parameters are the primary evidence to confirm anxiety as well as anti-anxiety effect of treatments. All the parameters are based on pathophysilogy of anxiety because anxiety or fear is evaluated through stress or immobilization of animal like mice and rats. On the basis of behavioral parameters as well as biochemical estimation, study concludes that Lemon Grass showed significant effect in plasma nitrates and other chemical messenger in anxiety at dose of 200mg/kg compared with Lemon Peel extract.