Fujian Journal of Agricultural Sciences ›› 2011, Vol. ›› Issue (3): 388-392.

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Amino Acid and Mineral Contents of Pitaya Fruits Harvested from Saline Habitats

YANG Dao-fu1, LIN Qi-hua2, LI Yu-fa2, CAI Qiu-ying3, CHEN Yuan1, ZHUO Yu-hui4   

  1. 1. Institute of Agricultural Engineering and Technology, Fujian Academy of Agricultural Science, Fuzhou, Fujian 350003, China;
    2. Fruit Research Institute, Fujian Academy of Agricultural Science, 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:2011-04-25 Revised:2011-06-06 Online:2011-06-15 Published:2011-06-15

Abstract: Contents of amino acids and 8 minerals(i.e.,K,Mg,Ca,Na,Fe,Zn,Mn and Cu)in two of pitaya fruit,Yinlong and Baiyulong,grown in saline habitats were determined.The results indicated that the pitaya fruits contained 17 amino acids.The total amino acid contents of Yinlong and Baiyulong were 765.62 mg·g-1FW and 1,122.60 mg·g-1FW,respectively.Glutamic acid cotent was the highest among them,accounting for 15.88% and 20.77% of the total amino acids in Yinlong and Baiyulong,respectively.The pharmacological amino acids were rich in the pitaya fruits,constituting 62.79% and 66.88% of the total amino acids in Yinlong and Baiyulong,respectively.The contents of K,Mg,Ca,Fe and Zn were higher in the pitaya fruits from the plants grown in saline habitats than otherwise.Thus,the effect of cultivation of pitaya fruit plants under saline conditions on the fruit's chemical contents,quality and socio-economic benefits are presented for future reference.

Key words: Pitaya, saline habitat, amino acid, minerals

CLC Number: 

  • S667.9