FOOD SCIENCE ›› 2016, Vol. 37 ›› Issue (22): 166-172.doi: 10.7506/spkx1002-6630-201622025

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Proximate Nutritional Composition and Volatile Aroma Compounds of Rosa sterilis S. D. Shi Fruits from Different Growing Areas of Guizhou Province

ZHANG Dan1, WEI Guangxin1, ZENG Fankun1,2,*   

  1. 1. College of Food Science, Southwest University, Chongqing 400715, China;
    2. Chongqing Engineering Research Center for Special Foods, Chongqing 400715, China
  • Received:2016-05-17 Online:2016-11-16 Published:2017-02-22

Abstract: Objective: This study aimed to investigate the difference in proximate nutritional composition and volatile aroma compounds of Rosa sterilis S. D. Shi fruits from different growing areas of Guizhou province. Methods: Characters and contents of basic ingredients of Rosa sterilis S. D. Shi collected from four regions of Guizhou were first evaluated. The organic acid compositions were then analyzed by high performance liquid chromatography (HPLC) and volatile compounds were determined by gas chromatography-mass spectrometry (GC-MS). Results: Rosa sterilis S. D. Shi from Anshun and Xingyi were much higher in weight and diameter than others. Fruits from Xingyi were much higher in L* than others. Rosa sterilis S. D. Shi from Anshun exhibited the highest level of superoxide dismutase (SOD) and VC contents; Fruits from Guiyang had the highest content of polyphenols and those from Anshun and Guiyang were much higher in the water content than others. There were no significant differences in other ingredients. Six organic acids were found in Rosa sterilis S. D. Shi, with citric acid and ascorbic acid being the most abundant. Rosa sterilis S. D. Shi from four growing areas contained a total of 60 aroma compounds, i.e. Anshun, 42; Guiyang, 39; Shibing, 49; and Xingyi, 40, among which, D-limonene, α-guaiene, isoamyl acetate, ethyl caprylate, ethyl n-hexoate, leaf acetate, benzaldehyde and 2,6,10,10-tetramethyl-1-oxa-spiro[4.5]dec-6-ene were the most important ones. Conclusions: Rosa sterilis S. D. Shi from four growing areas have significant differences in characters, basic ingredients and aroma compounds.

Key words: Rosa sterilis S. D. Shi, fruit character, basic ingredients, organic acid, volatile aroma compounds

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