| 油茶饼粕提取条件优化及其在火龙果贮藏保鲜中的应用 |
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| 引用本文： | 谢国芳,陈欢欢,杨飞艳,谢玲,赵治兵,刘永玲.油茶饼粕提取条件优化及其在火龙果贮藏保鲜中的应用[J].热带作物学报,2019,40(7):1399-1405. |
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| 作者姓名： | 谢国芳 陈欢欢 杨飞艳 谢玲 赵治兵 刘永玲 |
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| 作者单位： | 贵阳学院食品与制药工程学院/贵州省果品加工工程技术研究中心,贵州贵阳 550005 |
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| 基金项目： | 贵州省科技支撑计划项目(黔科合支撑[2019]2323);国家级大学生创新创业训练计划项目(No.201610976040);贵阳市科技局贵阳学院专项资金资助(No.GYU-KYZ[2018]01-17) |
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| 摘 要： | 为了充分利用油茶资源,以油茶饼粕为试材,通过提取剂筛选和均匀试验设计等优化提取条件,采前1 d喷施粗提液,观察其对火龙果采后贮藏品质的影响。研究表明：油茶饼粕最佳提取条件为是1 g饼粕15 mL 85%甲醇料液比在75 ℃下超声波辅助提取2 h,提取2次。采前喷施粗提液可显著提高火龙果采收时果皮色泽b *和果实抗坏血酸含量（P<0.05）,显著降低果皮硬度、果肉黏度、TSS（总可溶性固形物）及还原糖含量（P<0.05）;采前喷施粗提液显著延缓贮藏期间火龙果果肉黏度的急剧增加（P<0.05）,维持果皮亮度L *、b *、果肉硬度、TSS及抗坏血酸含量,从而延缓霉烂指数的升高,维持火龙果的品质。
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| 关 键 词： | 油茶饼粕 提取 火龙果 保鲜 |
| 收稿时间： | 2018-09-10 |
Extraction Conditions Optimization of Camellia oleifera Cake and Its Application in the Storage of Pitaya Fruits |
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| XIE Guofang,CHEN Huanhuan,YANG Feiyan,XIE Ling,ZHAO Zhibing,LIU Yongling.Extraction Conditions Optimization of Camellia oleifera Cake and Its Application in the Storage of Pitaya Fruits[J].Chinese Journal of Tropical Crops,2019,40(7):1399-1405. |
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| Authors: | XIE Guofang CHEN Huanhuan YANG Feiyan XIE Ling ZHAO Zhibing LIU Yongling |
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| Institution: | Food and Pharmaceutical Engineering Institute, Guiyang University / Guizhou Engineering Research Center for Fruit Processing, Guiyang, Guizhou 550005, China |
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| Abstract: | In order to reduce the use of chemical bacteriostatic agents and make full use of camellia resources, the extraction conditions of Camellia oleifera cake were optimized by extraction agent screening and an uniform experimental design. The effect of pre-harvest spraying crude extract of camellia cake on the storage quality of pitaya was investigated. The optimum extraction conditions of C. oleifera cake were obtained as follows: 85% methanol, the ratio of material to liquid is 1 g: 15 mL, each time ultrasonic assisted extraction for 2 h at 75 ℃, and extraction twice. The application of preharvest spraying crude extract could significantly improve the b * in peel and ascorbic acid content in pulp of pitaya (P<0.05), significantly reduce the firmness in pericarp, viscosity in pulp, TSS, and reducing sugar content (P<0.05) at harvest. Preharvest spraying crude extract significantly delayed the rapid increase of viscosity in pulp (P<0.05), and maintained the color (L * and b *), firmness in pulp, TSS, and ascorbic acid content, thus delayed the increase of the rot index of pitaya, and thus had a good preservation effect on pitaya during storage. |
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| Keywords: | Camellia oleifera cake extraction pitaya preservation |
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