Journal of Ginseng Research

The Korean Society of Ginseng (고려인삼학회)
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Quality and characteristics of fermented ginseng seed oil based on bacterial strain and extraction method

  • Lee, Myung-Hee (Ginseng Research Team, Division of Strategic Food Research, Korea Food Research Institute) ;
  • Rhee, Young-Kyoung (Ginseng Research Team, Division of Strategic Food Research, Korea Food Research Institute) ;
  • Choi, Sang-Yoon (Ginseng Research Team, Division of Strategic Food Research, Korea Food Research Institute) ;
  • Cho, Chang-Won (Ginseng Research Team, Division of Strategic Food Research, Korea Food Research Institute) ;
  • Hong, Hee-Do (Ginseng Research Team, Division of Strategic Food Research, Korea Food Research Institute) ;
  • Kim, Kyung-Tack (Ginseng Research Team, Division of Strategic Food Research, Korea Food Research Institute)
  • Received : 2016.04.06
  • Accepted : 2017.03.15
  • Published : 2017.07.15
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Abstract

Background: In this study, the fermentation of ginseng seeds was hypothesized to produce useful physiologically-active substances, similar to that observed for fermented ginseng root. Ginseng seed was fermented using Bacillus, Pediococcus, and Lactobacillus strains to extract ginseng seed oil, and the extraction yield, color, and quantity of phenolic compounds, fatty acids, and phytosterol were then analyzed. Methods: The ginseng seed was fermented inoculating 1% of each strain on sterilized ginseng seeds and incubating the seeds at $30^{\circ}C$ for 24 h. Oil was extracted from the fermented ginseng seeds using compression extraction, solvent extraction, and supercritical fluid extraction. Results and Conclusion: The color of the fermented ginseng seed oil did not differ greatly according to the fermentation or extraction method. The highest phenolic compound content recovered with the use of supercritical fluid extraction combined with fermentation using the Bacillus subtilis Korea Food Research Institute (KFRI) 1127 strain. The fatty acid composition did not differ greatly according to fermentation strain and extraction method. The phytosterol content of ginseng seed oil fermented with Bacillus subtilis KFRI 1127 and extracted using the supercritical fluid method was highest at 983.58 mg/100 g. Therefore, our results suggested that the ginseng seed oil fermented with Bacillus subtilis KFRI 1127 and extracted using the supercritical fluid method can yield a higher content of bioactive ingredients, such as phenolics, and phytosterols, without impacting the color or fatty acid composition of the product.

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References

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