Acta Agriculturae Zhejiangensis ›› 2023, Vol. 35 ›› Issue (4): 931-941.DOI: 10.3969/j.issn.1004-1524.2023.04.20

• Food Science • Previous Articles     Next Articles

Analysis for accumulation of norisoprenoids and changes of metabolic enzyme activities of Chardonnay grape berries

ZHANG Zhen1(), CUI Yuanyuan1, CHEN Chunxia1, FENG Lidan1, ZHAO Yong2, LI Jixin1, BA Lingzhen1, KONG Xiangjin1, ZHANG Yu1, JIANG Yumei1,*()   

  1. 1. Gansu Key Laboratory of Viticulture and Enology, Research and Development Center of Wine Industry in Gansu Province, College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
    2. Ecological Agricultural Demonstration Plantation Area of Gansu Mogao Industrial Development Limited Company, Wuwei 733006, Gansu, China
  • Received:2022-02-21 Online:2023-04-25 Published:2023-05-05

Abstract:

In order to determine the pattern of production and accumulation for norisoprenoids of Chardonnay grape berries, samples were collected every 2 weeks from young grapes (10 days after flowering) to maturity (80 days after flowering) in two consecutive production seasons in 2020 and 2021. The titratable acidity, pH, soluble solids, 100-grain weight, total carotenoids, norisoprenoids and carotenoid cleavage dioxygenase (CCD) enzyme activity were measured, and their change pattern were analyzed during the growth, and the correlation among carotenoids, CCD enzyme activity and norisoprenoids was discussed. The results showed that 6 norisoprenoids were determined during the growth. The total content of norisoprenoids showed an upward trend with the fruit ripened. CCD enzyme activity tended to increase in young fruits (10-38 days after flowering), to decrease in veraison (38-52 days after flowering), and to increase in fruits ripening stage (52-80 days after flowering). The total carotenoid content showed an overall decreasing trend, but there was a small accumulation peak before or after the veraison. The correlation analysis showed that CCD enzyme activity was negatively correlated with total carotenoid content, and positively correlated with free and bound α-ionone, β-ionone, β-damascenone, free geranylacetone, and bound 6-methylhept-5-en-2-one. Comparison of samples from different production seasons found that the climate of the production season had an effect on the physicochemical index, total carotenoid content, CCD enzyme activity and the content of norisoprenoids in the berries.

Key words: Chardonnay grape, carotenoids, carotenoid cleavage dioxygenase (CCD), norisoprenoid

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