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Journal of Agricultural Science and Technology، جلد ۱۸، شماره ۱، صفحات ۹۳-۱۰۷
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عنوان انگلیسی Composite Coating as a Carrier of Antioxidants Improves the Postharvest Shelf Life and Quality of Table Grapes (Vitis vinifera L. var. Thompson Seedless)
چکیده انگلیسی مقاله Composite edible coating comprising xanthan gum (0.3%) and olive oil (0.1%) enriched with antioxidants (gallic acid 0.1%, ferulic acid 0.1% and ascorbic acid 0.1%) enhanced the postharvest storability and nutritional quality of table grapes. The quality characteristics of table grapes were monitored during storage at 10±2°C, (70–75% RH), at regular intervals of 6 days until 24 days of storage. Xanthan gum combined with olive oil reduced the weight loss, decay occurrence, accumulation of total soluble solids and total sugars by reducing the rate of respiration and metabolism in the coated fruit. Moreover, incorporation of antioxidants in coating enhanced the level of phenolics, ascorbic acid and total antioxidant activity in grapes. The activities of cell wall modifying enzymes such as Polygalacturonase (PG) and Pectate Lyase (PL) were reduced in the fruits of treated sets as compared to that of the control set. These results suggest that the composite coating delayed the ripening and softening process in grapes and thereby extended their shelf life up to 24 days, while the control grapes were decayed on the 12th day.
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نویسندگان مقاله | N. S. Baraiya
BRD School of Biosciences, Sardar Patel University, Vallabh Vidyanagar – 388 120, Gujarat, India.


| T. V. Ramana Rao
BRD School of Biosciences, Sardar Patel University, Vallabh Vidyanagar – 388 120, Gujarat, India.


| V. R. Thakkar
BRD School of Biosciences, Sardar Patel University, Vallabh Vidyanagar – 388 120, Gujarat, India.
نشانی اینترنتی http://journals.modares.ac.ir/browse.php?a_code=A-23-1000-2901&slc_lang=en&sid=23
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