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多花黄精提取物对金冠苹果采后腐烂和品质的影响
张明明,王进,操海群,汤锋,花日茂,吴祥为,唐俊,岳永德
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(安徽农业大学植物保护学院,安徽省农产品安全重点实验室,合肥 230036;国际竹藤中心,北京 100080;安徽农业大学资源与环境学院,安徽省农产品安全重点实验室,合肥 230036)
摘要:
研究多花黄精提取物对金冠苹果防腐保鲜的效果,测定其对果实的腐烂率、失水率、可滴定酸含量、Vc含量、可溶性糖含量、过氧化物酶(peroxidase,POD)活性以及丙二醛含量等生理生化指标的影响。结果表明,质量浓度为12.5 g·L-1的多花黄精提取物对供试苹果进行浸泡处理,(24.0±2.0)℃条件下贮藏21 d后,果实的腐烂率比对照组降低了33.3%,可滴定酸、可溶性糖和Vc含量分别为0.190%、109.6 mg·g-1和3.7 mg·100 g-1,比对照组分别提高了4.4%、22.7%和105.6%;果实中丙二醛含量(MDA)的积累显著降低,并保持较高的POD活性,保鲜效果较佳。
关键词:  多花黄精  苹果  保鲜  提取物
DOI:10.13610/j.cnki.1672-352x.20141029.031
基金项目:林业公益性行业科研专项(201004055)资助。
Effect of Polygenetic cyrtonema extract on preservation of postharvest ‘Golden Delicious’ apples
ZHANG Mingming,WANG Jin,CAO Haiqun,TANG Feng,HUA Rimao,WU Xiangwei,TANG Jun,YUE Yongde
(Key Laboratory of Agri-Food Safety of Anhui Province, School of Plant Protection, Anhui Agricultural University, Hefei 230036;International Centre for Bamboo & Rattan, Beijing 100080;Key Laboratory of Agri-Food Safety of Anhui Province, School of Resources and Environment, Anhui Agricultural University, Hefei 230036)
Abstract:
To determine the effect of Polygenetic cyrtonema extract on preservation of apple fruits during the postharvest period, fruits of ‘Golden Delicious’ were submerged in the 12.5 g·L-1 Polygenetic cyrtonema extract solution. After the treated fruits were stored at (24.0±2.0)℃ for 21 days, the fruit decay rate and weight loss, the contents of titratable acids, vitamin C, soluble sugar, and MDA and POD activity in the fruits were investigated. The results indicated that Polygenetic cyrtonema extract at 12.5 g·L-1 decreased the fruit decay rate by 33.3%. The contents of titratable acids, soluble sugar, and vitamin C in the treated fruits were 0.190%, 109.6 mg·g-1, and 3.7 mg·100g-1, respectively, with an increase of 4.4%, 22.7%, and 105.6%, respectively, compared to that of the control group. Meanwhile, Polygenetic cyrtonema extract at 12.5 g·L-1 could decrease the MDA accumulation and keep relatively high activity of POD in the fruits, indicating a good effect on preservation of postharvest apple fruits.
Key words:  Polygenetic cyrtonema  apple  fresh-keeping effect  extract

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