Effects of the treatment timing of exogenous ethylene on bud inhibition and carbohydrate metabolism in sweet potato

  • DUAN Zhirong ,
  • JIN Miaomiao ,
  • WU Shanhong ,
  • DAI Hui ,
  • ZHANG Min
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  • 1(College of Food Science of Southwest University, Chongqing 400715, China)
    2(Food Storage and Logistics Research Center of Southwest University, Chongqing 400715, China)
    3(Laboratory of Quality Safety Risk Assessment for Argo-products on Storage and Preservation (Chongqing), Ministry of Agriculture, Chongqing 400715, China)

Received date: 2020-05-25

  Revised date: 2020-07-23

  Online published: 2021-02-03

Abstract

The germination time of sweet potato which not treated with exogenous ethylene was taken as the node.The concentration of 1 g/L exogenous ethylene was treated before the node, after the node and during storage and transportation, respectively.To study the effects of exogenous ethylene treatment timing on the regulation of germination and carbohydrate metabolism of sweet potato during ambient temperature storage and transportation.The results revealed that ethylene treatment could promote the respiration of sweet potato, decrease the content of tuberous starch and sugar, and increase the activation of α-amylase and β-amylase.Ethylene treatment with the dose of 1 g/L of whole process or post the node can better inhibit sweet potato sprout, and can significantly enhance the sucrose phosphate synthase (SPS) and the neutral invertase(NI) of sweet potato, reduce the acid invertase (AI), maintain higher soluble total sugar and sucrose content.Thus, sweetness of sweet potato would be higher.

Cite this article

DUAN Zhirong , JIN Miaomiao , WU Shanhong , DAI Hui , ZHANG Min . Effects of the treatment timing of exogenous ethylene on bud inhibition and carbohydrate metabolism in sweet potato[J]. Food and Fermentation Industries, 2021 , 47(1) : 206 -213 . DOI: 10.13995/j.cnki.11-1802/ts.024480

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