Soluble Sugars and Organic Acids of Pitaya Fruits during Development

YANG Dao-fu; LIN Qi-hua; XIE Hong-gen; CAI Qiu-ying; CHEN Yuan; ZHUO Yu-hui

doi:10.19303/j.issn.1008-0384.2012.10.010

Volume 27 Issue 10

Dec. 2012

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YANG Dao-fu, LIN Qi-hua, XIE Hong-gen, CAI Qiu-ying, CHEN Yuan, ZHUO Yu-hui. Soluble Sugars and Organic Acids of Pitaya Fruits during Development[J]. Fujian Journal of Agricultural Sciences, 2012, 27(10): 1076-1080. doi: 10.19303/j.issn.1008-0384.2012.10.010

Citation:

YANG Dao-fu, LIN Qi-hua, XIE Hong-gen, CAI Qiu-ying, CHEN Yuan, ZHUO Yu-hui. Soluble Sugars and Organic Acids of Pitaya Fruits during Development[J]. Fujian Journal of Agricultural Sciences, 2012, 27(10): 1076-1080. doi: 10.19303/j.issn.1008-0384.2012.10.010

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Soluble Sugars and Organic Acids of Pitaya Fruits during Development

doi: 10.19303/j.issn.1008-0384.2012.10.010

1. Institute of Agricultural Engineering and Technology,Fujian Academy of Agricultural Sciences,Fuzhou, Fujian 350003,China;
2. Fruit Research Institute,Fujian Academy of Agricultural Sciences,Fuzhou,Fujian 350003,China;
3. Agricultural Bureau of Hanjiang District in Putian,Putian,Fujian 351111,China;
4. Putian Xinmin Modern Agriculture Co.,Ltd.Putian,Fujian 351111,China

Received Date: 2012-10-01
Publish Date: 2012-10-18

Abstract

Abstract

Changes of the organic acid and soluble sugar contents in the fruits of Shuanglong pitaya during the development stage were monitored.The results showed that there were malic,oxalic,citric,tartaric and fumaric acids in the fruits.The total acid content,which changed in an inverted V fashion during the entire fruit development period,peaked at 1.29 g·hg-1 on the 25th day,and decreased to 0.54 g·hg-1 35 days after flowering.Oxalic acid was most prominent during the early development stage(i.e.,6 to 15 d after flowering),whereas,malic acid dominated in the middle and late stages(i.e.,16 to 35 d after flowering).The sugar content accelerated rapidly from 20 to 35 d,and reached its maximum of 12.45 g·hg-1 35 days after flowering.The sugar/acid ratio changed in a similar manner as the soluble sugars,with a peak value of 23 at 35 d after flowering.
- Pitaya,
- fruit development,
- organic acid,
- soluble sugar

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References(15)

References

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