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首页> 外文期刊>Journal of Food Science and Technology >Isozymes of antioxidative enzymes during ripening and storage of ber (Ziziphus mauritiana Lamk.).
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Isozymes of antioxidative enzymes during ripening and storage of ber (Ziziphus mauritiana Lamk.).

机译：ber（Ziziphus mauritiana Lamk。）的成熟和储存过程中的抗氧化酶同工酶。

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摘要

Isozyme profile of antioxidative enzymes viz. superoxide dismutase (SOD), peroxidase (POX), catalase (CAT) and ascorbate peroxidase (APX) was studied during ripening and storage of two cultivars of ber fruit (Ziziphus mauritiana Lamk.) differing in their shelf-lives viz. Umran (shelf-life, 8-9 d) and Kaithali (shelf-life, 4-5 d). The profile revealed that Umran variety exhibited three bands each of SOD and POX while in Kaithali, these enzymes had two isoenzymes throughout ripening. CAT and APX, however, showed two isozymes each during ripening of both the varieties and the pattern remained the same at all the stages of ripening except at the initial stage i.e immature green stage where single CAT isozyme was visible. During storage, one extra band each of SOD and POX present only in Umran got disappeared at later stages of storage, whereas in Kaithali, the pattern remained unchanged. Also, there was no change in the pattern of CAT and APX isozymes during storage of both the varieties. One isozyme of CAT could be considered as ripening related while one isozyme each of SOD and POX could be related to higher shelf life of fruits
机译：抗氧化酶的同工酶谱。在两个成熟期不同的ber果实（Ziziphus mauritiana Lamk）栽培和贮藏期间研究了超氧化物歧化酶（SOD），过氧化物酶（POX），过氧化氢酶（CAT）和抗坏血酸过氧化物酶（APX）。乌姆兰（保质期8-9 d）和凯萨利（保质期4-5 d）。概况显示，Umran品种的SOD和POX分别显示三个条带，而在Kaithali，这些酶在整个成熟过程中具有两个同工酶。然而，CAT和APX在两个品种的成熟过程中均显示两种同工酶，并且在所有成熟阶段的模式均保持相同，除了在初始阶段即未成熟的绿色阶段，其中可见单个CAT同工酶。在储存过程中，仅存在于乌姆兰的SOD和POX分别增加了一条带，在储存的后期阶段消失了，而在Kaithali，这种模式保持不变。同样，在两个品种的贮藏期间，CAT和APX同工酶的模式也没有变化。 CAT的一种同工酶可能被认为与成熟有关，而SOD和POX的一种同工酶可能与水果的货架期更长有关。

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