University of Tehran International Journal of Horticultural Science and Technology 2322-1461 8 4 2021 10 01 Grape Seed and Skin Extracts as Natural Preserving Agents on Strawberry Fruit 415 429 82186 10.22059/ijhst.2020.296220.336 EN Parvaneh Mohammadi-Benaruiyeh M. Sc. Horticultural Science Department, Agriculture and Natural Resources College, University of Hormozgan, Bandar Abbas, Iran Gholam Reza Sharifi-Sirchi Department of Biotechnology Engineering, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran 0000-0001-8485-1651 Journal Article 2020 10 19 Concerning highly restricted application of chemicals in postharvest technology of horticultural crops, it is necessary to introduce the safe methods for preserving food or methods of food preservation. This study aimed to improve quality and prolong storage life of strawberry fruit by application of grape seed and fruit skin extracts and to compare them with calcium chloride as a chemical. In this study, strawberry fruit was individually immersed in the 1% and 2% CaCl₂solutions, seed and skin extracts (1 and 2 mg L^-1) and then placed in polyethylene packaging for 24 d at 5±1 °C. Measurements of firmness, titrable acid, pH, weight loss, total antioxidant capacity, total phenolic, anthocyanin, vitamin C, enzymes' activity including catalase, peroxidase, and polyphenol oxidase and decay were carried out at 0, 6, 12, 18, and 24 d of storage. All applied treatments caused a significant effect on measured parameters including weight loss, titratable acidity, decay percentage and firmness, maintenance of anthocyanin and vitamin C contents, total phenolic, and antioxidant capacity. However, grape skin extract and grape seed extract showed the best results. Therefore, it can be concluded that Shiraz dark grape seed and skin extracts have the potential to control the decay incidence, prolong the storage life and preserve of postharvest valuable attributes of strawberry.  https://ijhst.ut.ac.ir/article_82186_7e9d771605be21688cd87754c4a10628.pdf