Korean Journal of Medicinal Crop Science (한국약용작물학회지)

The Korean Society of Medicinal Crop Science (한국약용작물학회)
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Effects of Film Packaging and Gas Composition on the Distribution and Quality of Ginseng Sprouts

새싹인삼의 필름포장과 가스조성이 품질특성에 미치는 영향

  • 장은하 (농촌진흥청 국립원예특작과학원 저장유통과) ;
  • 이지현 (농촌진흥청 국립원예특작과학원 저장유통과) ;
  • 최지원 (농촌진흥청 국립원예특작과학원 저장유통과) ;
  • 신일섭 (농촌진흥청 국립원예특작과학원 저장유통과) ;
  • 홍윤표 (농촌진흥청 국립원예특작과학원 저장유통과)
  • Received : 2020.01.08
  • Accepted : 2020.02.21
  • Published : 2020.04.30
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Abstract

Background: Ginsenosides, which have various physiological activities, are known to be abundant in the leaves and roots of ginseng. Ginseng sprouts can be used as a fresh vegetable and roots, stems, and leaves of ginseng can be consumed. This study aimed to investigate the effect of carbon dioxide treatment and the modified atmosphere (MA) packaging method in suppressing quality deterioration during the distribution of ginseng sprouts. Methods and Results: Ginseng sprouts were packed using Styrofoam, barrier film + non gas treatment, barrier film + gas treatment, 15 ㎛ polyamide (PA) double film + non gas treatment, 15 ㎛ PA double film + gas treatment, 25 ㎛ PA film + non gas treatment, or 25 ㎛ PA film + gas treatment. Quality parameters including gas composition, relative humidity, chlorophyll SPAD (Soil Plant Analysis Development) value, firmness, and rate of quality loss in ginseng sprouts were monitored at the following temperatures: 20℃, and 10℃. Ginseng sprouts packaged with 25 ㎛ PA film showed loss in quality because of wilting owing to low relative humidity within the film. Chlorophyll and firmness did not differ between film and gas treatments. The time point at which the combined loss from softening and decay owing to fungal, and bacterial infection and wilt reached 20% was considered the limit of distribution. At 20℃, the packaging not included in the 20% distribution loss rate limit or up to 7 days was 15 ㎛ PA double film + gas treatment. At 10℃, the packaging not included in the 20% distribution loss rate limit for up to 18 days were barrier film + gas treatment and 15 ㎛ PA double film + gas treatment. Conclusions: The film packaging suitable for the distribution of ginseng sprouts was found to be the barrier film and PA film with low gas permeability and maintaining hygroscopicity at 95% relative humidity. To prevent the loss in quality of ginseng sprouts, gas treatment (8% of O2 and 18% of CO2) in the film was found to be more suitable than no gas treatment for inhibition of decay.

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References

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