浙江农业科学 ›› 2026, Vol. 67 ›› Issue (4): 980-985.DOI: 10.16178/j.issn.0528-9017.20250111

• 蚕桑与特种养殖 • 上一篇    下一篇

高效抗氧化荧光桑蚕丝胶蛋白的制备

陈文凯1(), 赵虎成2, 刘燕娜1()   

  1. 1.赣州职业技术学院 动物科学学院,江西 赣州 341008
    2.惠州市农业科学研究所,广东 惠州 516023
  • 收稿日期:2025-02-14 出版日期:2026-04-11 发布日期:2026-04-17
  • 通讯作者: 刘燕娜
  • 作者简介:刘燕娜,E-mail:303009425@qq.com
    陈文凯,研究方向为蚕桑资源高值化加工利用。E-mail:1429669621@qq.com
  • 基金资助:
    赣州职业技术学院2024年度科学技术研究类校级课题(X-2024-KXJS-08)

Preparation of high-efficiency antioxidant fluorescent sericin from silkworms

CHEN Wenkai1(), ZHAO Hucheng2, LIU Yanna1()   

  1. 1.College of Animal Science,Ganzhou Polytechnic,Ganzhou 341008,Jiangxi
    2.Huizhou Science Research Institute for Agriculture,Huizhou 516023,Guangdong
  • Received:2025-02-14 Online:2026-04-11 Published:2026-04-17
  • Contact: LIU Yanna

摘要:

本研究采用添食育蚕法,以家蚕丝腺作为生物反应器,探究了碳点(CDs)对丝胶蛋白的荧光强度和抗氧化性能的影响。本研究以家蚕9芙×7湘为供试材料,设置对照(喂食普通桑叶)、CDs-0.25%(喂食含0.25% CDs的桑叶)、CDs-0.50%(喂食含0.50% CDs的桑叶)、CDs-0.75%(喂食含0.75% CDs的桑叶)等4个处理,从五龄第2天开始连续添食5 d,测定家蚕平均生长速率、存活率、蚕茧质量指标、丝胶蛋白的荧光强度和抗氧化性能。结果表明,CDs能显著(p<0.05)提升丝胶蛋白的荧光强度和抗氧化性能,提升效果与添食剂量密切相关,且CDs不会对家蚕生长和蚕丝产量造成不利影响。紫外光下,CDs组丝胶蛋白呈现出明亮的原生蓝色荧光,尤其是CDs-0.50%组和CDs-0.75%组。CDs-0.75%组丝胶蛋白的抗氧化性能最强,为19.16 U·mg-1,较对照组(10.27 U·mg-1)提高了86.56%,说明家蚕喂食含0.75% CDs的桑叶能提升桑蚕丝胶蛋白的荧光强度和抗氧化性能。本研究结果为丝胶蛋白的高质量生产及应用提供了理论参考。

关键词: 丝胶蛋白, 荧光强度, 抗氧化性能, 添食法

Abstract:

In this study,the feeding method of silkworms was adopted,and the silk glands of domestic silkworms were used as bioreactors to explore the effects of carbon dots(CDs)on the fluorescence intensity and antioxidant performance of sericin protein. In this study,9 Fu×7 Xiang silkworm variety was used as the test material,and 4 treatments were set up,namely control(feeding common mulberry leaves),CDs-0.25%(feeding mulberry leaves containing 0.25% CDs),CDs-0.50%(feeding mulberry leaves containing 0.50% CDs),and CDs-0.75%(feeding mulberry leaves containing 0.75% CDs). Starting from the second day of the fifth age,the food was continuously added for five days,and then the average growth rate,survival rate,quality indicators of silkworm cocoons,fluorescence intensity and antioxidant performance of sericin were determined. The results indicated that CDs could significantly(p<0.05)enhance the fluorescence intensity and antioxidant performance of sericin. The enhancement effect was closely related to the feeding dose,and CDs did not have an adverse effect on the growth of silkworms or the yield of silk. Under ultraviolet light,sericins from silkworms feeded with CDs showed a native bright blue fluorescence,especially in the CDs-0.5% group and the CDs-0.75% group. The antioxidant performance of sericin in the CDs-0.75% group was the strongest,at 19.16 U·mg-1,which was 86.56% higher than that in the control group(10.27 U·mg-1),indicating that feeding silkworms with mulberry leaves containing 0.75% CDs can enhance the fluorescence intensity and antioxidant performance of sericin from silkworms. The results of this study provide a theoretical reference for the high-quality production and application of sericin.

Key words: sericin, fluorescence intensity, antioxidant property, feeding method

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