Quality differences of Polygonatum filipes in different growth years

doi:10.16178/j.issn.0528-9017.20250294

Abstract

Abstract:

This study investigated the effects of different growth years on the quality of Polygonatum filipes cultivated at the Tiantai planting base in Zhejiang Province. One-way ANOVA was used to compare differences in alcohol-soluble extracts, polysaccharides, saponins, and total phenols content among samples of varying growth years. Principal component analysis (PCA) was employed to evaluate overall quality variations. Results showed significant differences in the content of these components across growth years. Alcohol-soluble extracts in 2- and 4-year-old samples were significantly higher than those in 1-, 3-, and 5-year-old samples. Polysaccharide content initially increased with growth years (1-4 years) but declined from the 4th to 5th year. Saponins and total phenols increased with growth years and stabilized between the 4th and 5th years. It indicated that 4-year-old Polygonatum filipes exhibited the highest quality. These findings suggest that the optimal harvesting time for Polygonatum filipes in this region is four years.

Key words: Polygonatum filipes, growth years, quality differences, one-way ANOVA, principal component analysis (PCA)

CLC Number:

S759.82

ZHANG Jinjun, CHEN Yaqing, ZHU Huanzhi, XIA Huili. Quality differences of Polygonatum filipes in different growth years[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(7): 1612-1615.

Figures/Tables 4

References 24

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生长年限/a	醇浸出物/ %	多糖/ %	总酚/ (mg·g^-1)	皂苷/ (mg·g^-1)
1	63.29±1.05 a	6.66±0.48 a	1.38±0.17 a	3.03±0.42 a
2	70.08±0.21 b	7.65±0.35 ab	1.28±0.09 a	3.03±0.51 a
3	63.09±2.48 a	8.41±0.72 bc	1.48±0.04 a	3.30±0.27 a
4	69.02±2.65 b	12.44±1.12 d	1.62±0.14 ab	5.05±0.81 b
5	63.41±0.94 a	9.37±0.14 c	1.77±0.05 b	4.15±0.24 b

生长年限/a	醇浸出物/ %	多糖/ %	总酚/ (mg·g^-1)	皂苷/ (mg·g^-1)
1	63.29±1.05 a	6.66±0.48 a	1.38±0.17 a	3.03±0.42 a
2	70.08±0.21 b	7.65±0.35 ab	1.28±0.09 a	3.03±0.51 a
3	63.09±2.48 a	8.41±0.72 bc	1.48±0.04 a	3.30±0.27 a
4	69.02±2.65 b	12.44±1.12 d	1.62±0.14 ab	5.05±0.81 b
5	63.41±0.94 a	9.37±0.14 c	1.77±0.05 b	4.15±0.24 b

主成分	特征值			提取平方和载入
主成分	特征值	方差/ %	累计贡献率/ %	合计	方差/ %	累计贡献率/%
1	2.624	65.593	65.593	2.624	65.593	65.593
2	1.269	31.729	97.322	1.269	31.729	97.322
3	0.091	2.267	99.589
4	0.016	0.411	100.000

主成分	特征值			提取平方和载入
主成分	特征值	方差/ %	累计贡献率/ %	合计	方差/ %	累计贡献率/%
1	2.624	65.593	65.593	2.624	65.593	65.593
2	1.269	31.729	97.322	1.269	31.729	97.322
3	0.091	2.267	99.589
4	0.016	0.411	100.000

组分	主成分得分系数
组分	1	2
醇浸出物	0.144	0.852
多糖	0.597	0.169
总酚	0.497	-0.494
总皂苷	0.613	0.035