Anatomical Changes and Anthocyanin Contents of the Exocarp by Ethyl Oleate Treatment on ‘Merlot’ Grapes

• Published in: Weon'ye gwahag gi'sulji Vol. 28; no. 3; pp. 370 - 373
• Main Authors: Byul-Ha-Na Lee(이별하나), Yong-Hee Kwon(권용희), Kyoung-Hee Shin(신경희), Hee-Seung Park(박희승)
• Format: Journal Article
• Language: English
• Published: 한국원예학회HST 01.06.2010; 한국원예학회
• Subjects: 농학; Vitis vinifera L; pigmentation; morphology; hypodermis; 착색; 외표피; 아표피; epidermis; 형태학
• ISSN: 1226-8763; 2465-8588

Preharvest treatment with 4% ethyl oleate on ‘Merlot’ (Vitis vinifera L.) grape reduced the thickness of the epidermal and hypodermal layers with significantly enhanced pigmentation. Thickness of the skin in treated berries was 90-107 μm, whereas those in control berries were 126-189 μm. Decreases in the thickness of epidermal and hypodermal cell layers seemed to be due to cellular death or dehydration by rapid senescence after the treatment. Immediate change observed in treated berries was the deformation of the wax that appeared melted resulting in color improvement. Total anthocyanin was also increased by ethyl oleate treatment. Separate forms of anthocyanins, acylated and methoxylated anthocyanins increased, whereas hydroxylated anthocyanins tended to decrease. KCI Citation Count: 9