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EFFECT OF DRYING TECHNIQUES ON THE TOTAL PHENOLIC CONTENTS AND ANTIOXIDANT ACTIVITY OF SOME VEGETABLES BYPRODUCTS
Abstract
Vegetables are considered a rich source of antioxidants (flavonoids, carotenoids, vitamins), which are frequently added to stop the process of oxidation in processed food systems. The solid waste generated in food industry was considered as a low cost raw material for the extraction of natural antioxidants. The effect of drying techniques (ambient-drying and oven-drying) on the total phenolic contents and antioxidant activity of selected vegetables byproducts (garlic (Allium sativum L.), tomato (Lycopersicon esculentum L.) and avocado (Persea Americana Mill.)) were studied. Tomato byproducts contained similar amount of total polyphenols and exhibited similar DPPH radical scavenging activity with tomatoes. Avocado seed is a byproduct that contains a large amount of extractable polyphenols, which have attracted the attention of food industry due to their high antioxidant capacity. The amounts of total phenolics (TP) were higher in avocado byproducts followed by tomato and garlic byproducts. The tested vegetables exhibited appreciable radical scavenging capacity ranging from 27.8% to 56%. The results of this study revealed that the amounts of total phenolics and antioxidant activity of all tested vegetables decreased after thermal treatment; more pronounced decline was observed for the ambient-dried samples as against oven-drying.
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References15
Damian, C., ANTIOXIDANT ACTIVITY OF CITRUS PEEL AND SEEDS EXTRACTS. International Multidisciplinary Scientific GeoConference: SGEM: Surveying Geology & mining Ecology Management, 18, 19-26, 2018.
Martínez, R., Torres, P., Meneses, M. A., Figueroa, J. G., Pérez-Álvarez, J. A., & Viuda-Martos, M., Chemical, technological and in vitro antioxidant properties of mango, guava, pineapple and passion fruit dietary fibre concentrate. Food chemistry, 135(3), 1520-1526, 2012.
Ayala-Zavala, J. F., Rosas-Domínguez, C., Vega-Vega, V., & González-Aguilar, G. A., Antioxidant enrichment and antimicrobial protection of fresh-cut fruits using their own byproducts: looking for integral exploitation. Journal of food science, 75(8), R175-R181, 2010.
Hughes, B. G., & Lawson, L. D., Antimicrobial effects of Allium sativum L.(garlic), Allium ampeloprasum L.(elephant garlic), and Allium cepa L.(onion), garlic compounds and commercial garlic supplement products. Phytotherapy Research, 5(4), 154-158, 1991.
Lawson, L. D., & Wang, Z. J., Allicin and allicin-derived garlic compounds increase breath acetone through allyl methyl sulfide: use in measuring allicin bioavailability. Journal of agricultural and food chemistry, 53(6), 1974-1983, 2005.
Corzo-Martínez, M., Corzo, N., & Villamiel, M., Biological properties of onions and garlic. Trends in food science & technology, 18(12), 609-625, 2007.
Nuutila, A. M., Puupponen-Pimiä, R., Aarni, M., & Oksman-Caldentey, K. M., Comparison of antioxidant activities of onion and garlic extracts by inhibition of lipid peroxidation and radical scavenging activity. Food chemistry, 81(4), 485-493, 2003.
Valdez-Morales, M., Espinosa-Alonso, L. G., Espinoza-Torres, L. C., Delgado-Vargas, F., & Medina-Godoy, S., Phenolic content and antioxidant and antimutagenic activities in tomato peel, seeds, and byproducts. Journal of agricultural and food chemistry, 62(23), 5281-5289, 2014.
Knoblich, M., Anderson, B., & Latshaw, D., Analyses of tomato peel and seed byproducts and their use as a source of carotenoids. Journal of the Science of Food and Agriculture, 85(7), 1166-1170, 2005.
Dreher, M. L., & Davenport, A. J., Hass avocado composition and potential health effects. Critical reviews in food science and nutrition, 53(7), 738-750, 2013.
Calderón-Oliver, M., Escalona-Buendía, H. B., Medina-Campos, O. N., Pedraza-Chaverri, J., Pedroza-Islas, R., & Ponce-Alquicira, E., Optimization of the antioxidant and antimicrobial response of the combined effect of nisin and avocado byproducts. LWT-Food Science and Technology, 65, 46-52, 2016
Ashoush, I. S., & Gadallah, M. G. E., Utilization of mango peels and seed kernels powders as sources of phytochemicals in biscuit. World J. Dairy Food Sci, 6(1), 35-42, 2011.
Cilliers, J. J., & Singleton, V. L., Autoxidative phenolic ring opening under alkaline conditions as a model for natural polyphenols in food. Journal of Agricultural and Food Chemistry, 38(9), 1797-1798, 1990.
Munir, A., Sultana, B., Bashir, A., Ghaffar, A., Munir, B., Shar, G. A. & Iqbal, M., Evaluation of Antioxidant Potential of Vegetables Waste. Polish Journal of Environmental Studies, 27(2), 2018.
Sultana, B., Anwar, F., Ashraf, M., & Saari, N., Effect of drying techniques on the total phenolic contents and antioxidant activity of selected fruits. Journal of Medicinal Plants Research, 6(1), 161-167, 2012.
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