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| Effects of ethephon on quality of postharvest seed kernels of Camellia oleifera |
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| DOI：10.19902/j.cnki.zgyz.1003-7969.230137 |
| KeyWord:Camellia oleifera ethephon oil content in seed kernel unsaturated fatty acid soluble sugar sucrose 1-aminocyclopropane carboxylic acid |
| FundProject:湖南省科技创新计划种业创新项目（2021NK1007）；长沙市自然科学基金资助项目（kq2208412） |
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| Abstract: |
| In order to develop a method for large-scale processing of Camellia oleifera seeds to promote their post-ripening, using the fresh fruit of Camellia oleifera variety ′Huashuo′ as the experimental material, after peeling, Camellia oleifera seeds were obtained. Camellia oleifera seeds were treated with 1.5 g/L ethephon solution soaking, and the contents of oil, soluble sugar, sucrose and endogenous 1-aminocyclopropane carboxylic acid (ACC) in Camellia oleifera seed kenels and unsaturated fatty acid content in its oil were analyzed after 0, 3, 6, 9, 12 d and 15 d of treatment. The effects of ethephon on quality of postharvest seed kernels of Camellia oleifera were investigated. The results showed that 1.5 g/L ethephon soaking Camellia oleifera seeds significantly increased the oil content (9 d after treatment, the oil contents of control group and treatment group reached their peak, with the treatment group 15.64% higher than that of the control group), the contents of soluble sugar and sucrose in seed kernels(12 d after treatment, the contents of soluble sugar and sucrose of control group and treatment group reached their peaks, with the treatment group 16.41% and 36.49% higher than those of the control group, respectively), and the unsaturated fatty acid content in oil(3 d after treatment, the unsaturated fatty acid content in the treatment group reached a peak, and 6 d after treatment, the unsaturated fatty acid content in the control group reached a peak, with the treatment group 0.28% higher than that of the control group). The trend of endogenous ACC content in Camellia oleifera seed kernels was changed, so that the original bimodal type changed to unimodal type. In conclusion, the use of ethephon soaking treatment is beneficial for improving the quality of postharvest Camellia oleifera seed kernels and reducing losses caused by improper harvesting and storage. |
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