Laboratory of Chemistry - Biochemistry - Physical Chemistry of Foods, Department of Dietetics and Nutrition, Harokopio University, Athens, Greece.
Agricultural Cooperatives' Union of Aeghion, Aeghion, Greece.
J Sci Food Agric. 2019 Jan 30;99(2):915-922. doi: 10.1002/jsfa.9263. Epub 2018 Sep 10.
Corinthian raisins or Corinthian currants are dried grape products that account for approximately 3% of dried vine fruit production worldwide. Greece is the major Corinthian raisin producer. In this study Corinthian raisins were produced by applying two traditional drying methods, i.e. sun and shade drying. The drying process effect on the raisin phytochemical and sugar content was assessed; samples obtained over three consecutive crops were evaluated to prevail over climatic condition variations.
Total phenolic, flavanol, and anthocyanin content were higher in Corinthian raisins dried under shade as compared with the sun-dried ones; individual anthocyanidin-3-O-glucosides were also qualitatively and quantitatively higher under shade drying in most cases. Differences were observed in Corinthian raisin phytochemical content among the crop years evaluated. The drying process applied did not discriminatively affect the sugar content of Corinthian raisin.
Drying under shade was proven superior to sun drying with respect to Corinthian raisin phytochemicals and could be considered as an appealing drying method for the production of dried raisins and perhaps other dried fruits. © 2018 Society of Chemical Industry.
科林斯葡萄干或科林斯无核葡萄干是一种干制葡萄产品，约占全球干制葡萄产量的 3%。希腊是主要的科林斯葡萄干生产国。本研究采用两种传统的干燥方法，即日晒和遮阴干燥，来生产科林斯葡萄干。评估了干燥过程对葡萄干中植物化学成分和糖含量的影响；评估了连续三年获得的样品，以克服气候条件变化的影响。
与日晒相比，遮阴干燥的科林斯葡萄干中的总酚、黄烷醇和花青素含量更高；在大多数情况下，遮阴干燥的单个矢车菊素-3-O-葡萄糖苷在定性和定量上也更高。在所评估的作物年份中，科林斯葡萄干的植物化学成分含量存在差异。所采用的干燥方法对科林斯葡萄干的糖含量没有明显影响。
与日晒相比，遮阴干燥在科林斯葡萄干的植物化学成分方面表现更优，可被视为生产葡萄干和其他干制水果的一种有吸引力的干燥方法。 © 2018 英国化学学会。
