Hydrogen-rich Water Significantly Improves Strawberry Quality and Oxidation Resistance

doi:10.7668/hbnxb.20196100

Abstract

Abstract:

By studying the quality and antioxidant capacity of strawberries irrigated with hydrogen-rich water(H)and ordinary water(CK),the influence of hydrogen-rich water on improving strawberry quality and prolonging strawberry preservation period was revealed,which provided a reasonable basis for effectively reducing the use of chemical fertilizers and pesticides and improving strawberry taste quality and food safety.Taking Jijiu and Yuzhu strawberries as materials,the roots of strawberries were irrigated with hydrogen-rich water and ordinary water respectively.The contents of soluble solids,titratable acid,fructose,glucose,sucrose,vitamin C and the activities of protective enzymes superoxide dismutase(SOD)and catalase(CAT)were measured,the morphological characteristics of roots and leaves,chlorophyll content and photosynthetic rate of leaves were measured respectively.The results showed that the contents of soluble solids,titratable acid,sucrose and vitamin C in strawberry fruit treated with hydrogen-rich water were significantly higher than those treated with ordinary water,and random forest analysis showed that titratable acid,sucrose and vitamin C were the main factors affecting the soluble solids of strawberry.The length,volume,surface area,diameter,root tip number,leaf length,width,leaf area,chlorophyll and photosynthetic rate of strawberry treated with hydrogen-rich water were significantly higher than those treated with ordinary water.The activities of CAT and SOD in strawberries stored at 25 ℃ were significantly higher than those at 4 ℃,and the activities of enzymes in strawberries treated with hydrogen-rich water were significantly higher than those in ordinary water treatment.With the extension of strawberry storage time,the activity of CAT first increased and then decreased,and reached the highest on the third day,while the activity of SOD did not change significantly with the extension of storage time.The above results showed that hydrogen-rich water can improve the taste and quality of strawberries,prolong the fresh-keeping period and shelf life of strawberries,and achieve the purpose of improving quality and increasing efficiency.

Key words: Strawberry, Hydrogen-rich water, Antioxidant, Quality

CLC Number:

LU Peng, FENG Jia, LI Li, HAN Yafan, YANG Mengjia, YANG Li, YANG Lei. Hydrogen-rich Water Significantly Improves Strawberry Quality and Oxidation Resistance[J]. Acta Agriculturae Boreali-Sinica, 2025, 40(S1): 164-170. doi: 10.7668/hbnxb.20196100.

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Figures/Tables 7

Fig.1 Root system of strawberry under hydrogen-rich water and ordinary water treatment

Tab.1 Morphological characteristics of strawberry root system under hydrogen-rich water and ordinary water irrigation

处理 Treatment	根长/cm Root length	根表面积/cm² Root surface area	直径/mm Diameter	体积/cm³ Volume	根尖数量 Apex number
YZ-H	1 174±128a	288±52a	0.78±0.06a	5.67±1.46a	1 460±74a
YZ-CK	954±205b	210±51b	0.70±0.03b	3.68±1.02b	1 218±234b

Tab.2 Characteristics of strawberry leaves irrigated with hydrogen-rich water and ordinary water

处理 Treatment	叶面积/m² Leaf area	叶长/mm Leaf length	叶宽/mm Leaf width
YZ-CK	26.4±1.2bc	67.3±2.1b	54.0±1.0c
YZ-H	28.2±1.0ab	74.3±3.5a	60.0±3.6b
JJ-H	29.6±0.6a	71.0±2.0ab	65.3±2.1a
JJ-CK	24.6±1.1c	67.3±2.1b	58.7±2.1b

Fig.2 Dynamic changes of SPAD and photosynthetic rate in strawberry leaves under hydrogen-rich water and ordinary water treatment Different capital letters next to the bar represent significant difference of SPAD and photosynthetic rate of the same strawberry in different time(P<0.05);Different lowercase letters indicate significant difference of SPAD and photosynthetic rate of the strawberries in the same time in different treatments(P<0.05).

Fig.3 Strawberry quality under hydrogen-rich water and ordinary water treatment Different lowercase letters on the bar represent significant difference of the strawberry quality indexes in different treatments(P<0.05).

Fig.4 Random forest analysis to identify the main predictors of soluble solids of strawberry

Fig.5 Dynamic changes of strawberry enzyme activity under hydrogen-rich water and ordinary water treatment Different capital letters represent significant difference of the enzyme activities of the same treated strawberries in different storage time(P<0.05);different lowercase letters indicate the significant difference of the enzyme activities of the strawberries in the same storage time in different treatments(P<0.05).

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