Acta Agriculturae Zhejiangensis ›› 2021, Vol. 33 ›› Issue (10): 1844-1851.DOI: 10.3969/j.issn.1004-1524.2021.10.07

• Horticultural Science • Previous Articles     Next Articles

Dynamic change of nutritional components during fruit development in jabuticaba

QIU Shanlian(), LIN Baomei, ZHANG Shaoping, HONG Jiamin, ZHANG Shuai, ZHENG Kaibin*()   

  1. Institute of Subtropical Agriculture, Fujian Academy of Agricultural Sciences, Zhangzhou 363005, China
  • Received:2020-08-14 Online:2021-10-25 Published:2021-11-02
  • Contact: ZHENG Kaibin

Abstract:

Jabuticaba fruits at different development stages were used to study the sensory characteristics and dynamic changes of nutritional components, to provide reference for timely harvest. Results showed that on the 30th day after anthesis, the peel color was green, the single fruit weight was 4.88 g, and the fruit diameter was 2.18 cm. With the growth of the fruit, the peel color changed from green to red, then purple, and finally to purple black. The weight and size of the fruit increased gradually. The single fruit weight was 8.20 g and the fruit diameter was 2.76 cm at full ripe stage. Reducing sugar was the most important nutritional component in the whole development stage of jabuticaba. The dynamic trends of reducing sugar, sucrose and soluble solids content were similar, that was, the contents of the three nutritional substances increased on 30-52 days after anthesis, reached the highest at full ripe stage, and decreased significantly at over ripe stage (P<0.05). The content of reducing sugar increased from 26.58% to 56.47% and then decreased to 53.05%, sucrose increased from 1.51% to 4.55% and then decreased to 1.91%, soluble solid increased from 8.80% to 17.10% and then decreased to 15.83%. The dynamic change trend of starch, protein and crude fiber content was similar, which was contrary to the trend of reducing sugar, that was, their contents decreased first and then increased, exhibited the lowest values at full ripe stage, and increased significantly at over ripe stage (P<0.05). Starch content decreased from 18.92% to 13.48%, protein from 7.24% to 5.63%, crude fiber from 5.62% to 2.60% on 30-52 days after anthesis. The total amino acid content decreased from 5.35% to 3.62% in 30-45 days after anthesis, and then increased. The contents of total polyphenols and flavonoids showed the dynamic change of “down-up-down”, were the highest on 30 days after anthesis, which were 107.63 mg·g-1 and 48.03 mg·g-1, respectively, and the lowest on 39 days after anthesis, which were 28.75 mg·g-1 and 21.05 mg·g-1, respectively.

Key words: jabuticaba, nutritional components, sensory change, dynamic change

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