CAJ | 학술논문

奉节脐橙(Citrus sinensis Osbeck)是重庆鲜食柑橘的重要品种之一,但容易发生果皮褐变,严重影响生产的经济效益.为了降低脐橙果皮褐变的发生,提高果实的耐贮性和商品价值,本研究以奉节脐橙果实为材料.分别用1% CaCl_2、2% CaCl_2、1%Ca(NO_3)_2、2% Ca(NO_3)_2配合施保功、2,4-D处理,分析其对果皮褐变及膜脂过氧化作用相关生理指标的影响.结果表明:钙处理能有效降低褐变指数、相对电导率和丙二醛含量.提高膜脂过氧化保护酶活性,从而降低果皮褐变率;氯化钙处理效果优于硝酸钙处理.1% CaCl_2浸果处理的效果最好,贮藏110d后,褐变指数比对照降低了27.5%.
봉절제등(Citrus sinensis Osbeck)시중경선식감귤적중요품충지일,단용역발생과피갈변,엄중영향생산적경제효익.위료강저제등과피갈변적발생,제고과실적내저성화상품개치,본연구이봉절제등과실위재료.분별용1% CaCl_2、2% CaCl_2、1%Ca(NO_3)_2、2% Ca(NO_3)_2배합시보공、2,4-D처리,분석기대과피갈변급막지과양화작용상관생리지표적영향.결과표명:개처리능유효강저갈변지수、상대전도솔화병이철함량.제고막지과양화보호매활성,종이강저과피갈변솔;록화개처리효과우우초산개처리.1% CaCl_2침과처리적효과최호,저장110d후,갈변지수비대조강저료27.5%.
'Fengjie' navel orange (Citrus sinensis Osbeck) is one of important citrus cultivars in Chongqing. However, peel pitting of this cultivar is very serious. It seriously affects the economic value of fruits. In order to prevent the peel pitting and increase the fruit quality and storability, 'Fengjie' navel orange fruits were treated with 1% CaCl_2, 2% CaCl_2, 1% Ca(NO_3)_2 and 2% Ca(NO_3)_2, respectively, together with Sporgon or 2,4-D, and they were then exanuned regularly in terms of physiological and biochemical indicators related to peel pitting and membrane lipid peroxidation. The results indicated that calcium treatment effectively decreased the peel pitting index, relative electric conductivity and MDA content and positively increased activities of membrane lipid peroxidation protective enzymes during storage of fruits, reducing the pitting incidence. The CaCl_2 treatment was better than Ca(NO_3)_2. The fruit treated with 1% CaCl_2 were the best among all the treatments and had lower pitting index, 27.5% lower than that of the control after 110 days of storage. These results are very useful for understanding the mechanism and finding the measures to control peel pitting of 'Fengjie' navel orange.