聚乙烯微塑料对樱桃萝卜生长及抗氧化物质含量的影响

doi:10.16178/j.issn.0528-9017.20240677

摘要/Abstract

摘要：

为探究微塑料对樱桃萝卜生长和食用品质的影响,本文以根用蔬菜樱桃萝卜为试验材料,研究了不同含量不同粒径聚乙烯微塑料(PE-MPs)对其幼苗生长发育及根系长势、根可食部分4种抗氧化物质及2种活性氧含量的影响。结果表明,6.5、48和500 μm粒径PE-MPs在较低含量(0.5和1.0 g·kg^-1)时,对樱桃萝卜种子发芽无显著影响(p>0.05),但0.5 g·kg^-1 48、500 μm粒径PE-MPs使樱桃萝卜根系活力显著(p<0.05)下降,0.5 g·kg^-1 6.5、48和500 μm PE-MPs使根系可食部分的总多酚、总黄酮、抗坏血酸和谷胱甘肽含量显著降低,相反,活性氧${O}_{2}^{-}$和H₂O₂含量显著升高。这些结果表明,PE-MPs影响樱桃萝卜的产量与品质,使其抗氧化活性降低。

关键词: 聚乙烯微塑料, 樱桃萝卜, 根, 抗氧化物质, 影响

Abstract:

To investigate the effects of microplastics on the growth and edible quality of cherry radish, this article used root vegetables cherry radishes as test materials to study the effects of different contents and particle sizes of polyethylene microplastics (PE-MPs) on the growth and development of seedlings, root growth, the contents of four antioxidant substances in the edible parts of roots, and the contents of two reactive oxygen. The results showed that the PE-MPs with the particle sizes of 6.5, 48 and 500 μm had no significant effect on the seed germination of cherry radish at low contents (0.5 and 1.0 g·kg^-1) (p>0.05), but 0.5 g·kg^-1 PE-MPs with the particle sizes of 48 and 500 μm significantly (p<0.05) decreased root vitality. 0.5 g·kg^-1 PE-MPs with the particle sizes of 6.5, 48 and 500 μm significantly reduced the contents of the total polyphenol, total flavonoid, ascorbic acid, and glutathione in the edible parts of roots, on the contrary, it significantly increased ${O}_{2}^{-}$ and H₂O₂ contents. These results indicate that PE-MPs affect the yield and quality of cherry radish, reducing its antioxidant activity.

Key words: polyethylene microplastics, cherry radish, root, antioxidant substance, effect

中图分类号:

S631.1

王小明, 年志娟, 朱建文, 裴慧芳, 马国泰, 张芬琴, 曾秀存. 聚乙烯微塑料对樱桃萝卜生长及抗氧化物质含量的影响[J]. 浙江农业科学, 2025, 66(11): 2622-2626.

WANG Xiaoming, NIAN Zhijuan, ZHU Jianwen, PEI Huifang, MA Guotai, ZHANG Fenqin, ZENG Xiucun. Effect of polyethylene microplastics on the growth and contents of antioxidant substances of cherry radish[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(11): 2622-2626.

图/表 5

参考文献 21

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PE-MPs 粒径/μm	PE-MPs含量/ (g·kg^-1)	发芽率/ %	发芽势	发芽指数	活力指数
6.5	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	53.33±5.77 a	9.44±0.32 a	129.33±10.36 a
	1.0	100±0 a	51.67±2.89 a	9.33±0.32 a	126.50±10.32 a
	5.0	100±0 a	43.33±2.89 b	8.69±0.23 b	101.74±9.91 b
	10.0	100±0 a	33.33±2.89 c	6.07±0.48 c	82.11±11.40 c
48	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	48.33±2.89 a	9.52±0.27 a	127.45±10.70 a
	1.0	100±0 a	51.67±2.89 a	9.19±0.13 a	125.50±10.08 a
	5.0	100±0 a	46.67±2.89 ab	8.06±0.41 b	88.44±7.94 b
	10.0	100±0 a	43.33±2.89 b	7.68±0.35 b	86.92±6.26 b
500	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	55.00±5.00 a	9.40±0.14 a	127.22±11.29 a
	1.0	100±0 a	53.33±2.89 a	9.46±0.40 a	127.73±8.10 a
	5.0	100±0 a	46.00±2.00 b	8.55±0.31 b	93.08±6.16 b
	10.0	100±0 a	45.00±0.00 b	8.07±0.33 b	90.56±9.01 b

PE-MPs 粒径/μm	PE-MPs含量/ (g·kg^-1)	发芽率/ %	发芽势	发芽指数	活力指数
6.5	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	53.33±5.77 a	9.44±0.32 a	129.33±10.36 a
	1.0	100±0 a	51.67±2.89 a	9.33±0.32 a	126.50±10.32 a
	5.0	100±0 a	43.33±2.89 b	8.69±0.23 b	101.74±9.91 b
	10.0	100±0 a	33.33±2.89 c	6.07±0.48 c	82.11±11.40 c
48	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	48.33±2.89 a	9.52±0.27 a	127.45±10.70 a
	1.0	100±0 a	51.67±2.89 a	9.19±0.13 a	125.50±10.08 a
	5.0	100±0 a	46.67±2.89 ab	8.06±0.41 b	88.44±7.94 b
	10.0	100±0 a	43.33±2.89 b	7.68±0.35 b	86.92±6.26 b
500	0	100±0 a	55.00±5.00 a	9.48±0.27 a	130.09±8.96 a
	0.5	100±0 a	55.00±5.00 a	9.40±0.14 a	127.22±11.29 a
	1.0	100±0 a	53.33±2.89 a	9.46±0.40 a	127.73±8.10 a
	5.0	100±0 a	46.00±2.00 b	8.55±0.31 b	93.08±6.16 b
	10.0	100±0 a	45.00±0.00 b	8.07±0.33 b	90.56±9.01 b

PE-MPs粒径/μm	总多酚含量	总黄酮含量	抗坏血酸含量	谷胱甘肽含量
CK	1 173.72±77.35 a	327.93±15.98 a	16.64±1.20 a	175.44±13.24 a
6.5	796.83±67.16 c	260.87±33.74 b	11.00±0.89 c	113.76±10.75 d
48	866.71±52.89 c	281.93±15.29 b	11.39±0.97 c	136.13±9.96 c
500	1 093.59±101.26 b	289.67±16.65 b	12.23±1.12 b	150.23±10.21 b

PE-MPs粒径/μm	总多酚含量	总黄酮含量	抗坏血酸含量	谷胱甘肽含量
CK	1 173.72±77.35 a	327.93±15.98 a	16.64±1.20 a	175.44±13.24 a
6.5	796.83±67.16 c	260.87±33.74 b	11.00±0.89 c	113.76±10.75 d
48	866.71±52.89 c	281.93±15.29 b	11.39±0.97 c	136.13±9.96 c
500	1 093.59±101.26 b	289.67±16.65 b	12.23±1.12 b	150.23±10.21 b

PE-MPs粒径/μm	${O}_{2}^{-}$含量	H₂O₂含量
CK	1.89±0.17 c	120.29±9.17 c
6.5	2.33±0.18 a	155.00±13.34 a
48	2.18±0.21 b	140.43±12.94 b
500	2.15±0.17 b	138.29±11.76 b