自动自发气调箱贮藏对甜樱桃品质及抗氧化酶的影响

Effects of Auto-MA Box on Qualities and Antioxidative Enzymes in Sweet Cherry Fruit during Storage

摘要:

以艳阳樱桃为试材，研究了气调箱保鲜处理对甜樱桃果实贮藏品质变化的影响以及抗氧化酶的调控。结果表明：甜樱桃果实在贮藏30d后，气调箱内CO2和O2体积分数分别维持在11%~12%和9%~10%。经气调箱贮藏的甜樱桃果实硬度在各个贮藏时期均高于对照果实，并且，它保持了果实中较高的维生素C含量，有效地延缓了可溶性固形物含量的下降，诱导了贮藏前期果实中过氧化物酶、过氧化氢酶、超氧化物歧化酶及抗坏血酸过氧化物酶活性。气调箱贮藏延缓了果实的pH值、花青素和总酚含量的升高。气调箱贮藏最明显的效果是降低了甜樱桃果实的病害发生率，在（0±0.5）℃贮藏60d后仍具有较好的感官品质。

Abstract:

Sweet cherry fruit (Prunus avium L. cv. Sunburst) were held into auto-modified atmosphere box (MAB). The postharvest qualities and antioxidative enzymes of sweet cherry fruit were investigated at interval. Results showed that CO2 and O2 concentration in MAB were kept at about 11%~12% and 9%~10% after 30d of storage of sweet cherry fruit. Firmness in fruit stored in MAB was higher than those in control during storage. MAB treatment maintained the higher Vitamin C content, and was effective in inhibition of the declining of soluble solids content in contrast to control, and increased peroxidase (POD), catalase (CAT), superoxide dismutase (SOD), ascorbate peroxidase (APX) activity in the early storage. But MAB treatment delayed the increase of pH value, anthocyanin and total phenol content of sweet cherry fruit. MAB treatment inhibited significantly the decay incidence of sweet cherry fruit during storage. The sweet cherry fruit treated by MAB still had good sensory quality significantly after 60d of storage.