Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Effect of biomass pyrolysis liquid on the quality characteristics of 'Xiangshui' pears (Pyrus ussuriensis) during storage

바이오매스 열분해액이 '향수'배의 저장 중 품질특성에 미치는 영향

  • Zhang, Xian (Department of Food Science, Yanbian National University) ;
  • Jiang, Gui-Hun (Department of Food Science and Technology, Chonnam National University) ;
  • Li, Fan-Zhu (Department of Food Science, Yanbian National University) ;
  • Eun, Jong-Bang (Department of Food Science and Technology, Chonnam National University)
  • 장선 (연변대학교 농학원 식품과학계) ;
  • 강귀훈 (전남대학교 식품공학과) ;
  • 이범수 (연변대학교 농학원 식품과학계) ;
  • 은종방 (전남대학교 식품공학과)
  • Received : 2016.12.12
  • Accepted : 2017.06.12
  • Published : 2017.06.30
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Abstract

The quality characteristics of 'Xiangshui' pears (Pyrus ussuriensis) treated with different concentrations of biomass pyrolysis liquid (BPL) during storage at $25^{\circ}C$ were investigated. The weight of 'Xiangshui' pears treated with BPL declined at a slower rate than that of the control. The rot index of BPL-treated 'Xiangshui' pears decreased with increasing storage times, and treatment with 20-fold-diluted BPL resulted in the lowest rot index after storage for 12 days. The total acid content of 'Xiangshui' pears treated with 20-fold-diluted BPL was 0.19%, and was the highest after storage for 12 days. After storage for 12 days, the total sugar content of 'Xiangshui' pears treated with 20-fold-diluted BPL was 7.19%; this was significantly higher than that of the control, but not significantly different from that of pears treated with other BPL dilutions. The vitamin C content of 'Xiangshui' pears showed a decreased trend, and pears treated with 20-fold-diluted BPL had a vitamin C content of 2.21 mg/100 g after storage for 12 days and showed the least decline compared to other treatments. In addition, respiration in 'Xiangshui' pears was effectively inhibited by treatment with BPL. In conclusion, BPL treatment exerts a protective effect on the quality of 'Xiangshui' pears during storage, with 20-fold-diluted BPL being the most effective.

바이오매스 열분해액이 '향수'배에 대한 신선도 유지 효과를 관찰하기 위하여 서로 다른 농도로 희석한 바이오매스 열분해액을 '향수'배에 분무처리하고 실온에 저장하면서 그 품질 변화를 조사하였다. 저장 기간 중 열분해액을 20배로 희석하여 처리한 '향수'배의 중량 감소와 부패 지수는 무처리구에 비해 낮은 값을 나타내었으며, 또한 호흡율을 효과적으로 억제하였다. 총산 함량 및 총당 함량은 저장 12일 후 열분해액 20배를 희석하여 처리한 '향수'배가 무처리구보다 현저하게 높았으며 그 함량이 0.19% 및 7.19%를 나타내었다. '향수'배의 비타민 C 함량에 있어서, 저장 12일째에 열분해액 20배를 희석하여 처리한 '향수'배의 비타민 C 함량이 2.21 mg/100 g으로 그 감소량이 가장 작았다. 결론적으로 바이오매스 열분해액 처리가 '향수'배의 선도유지에 일정한 효과가 있다는 것을 알 수 있었으며 20배로 희석한 열분해액의 처리가 '향수'배의 저장 중 품질 변화를 가장 적게 하여 그 효과가 가장 좋은 것으로 나타났다. 따라서 열분해액이 이화학적 특성에서 목초액과 비슷하나 구체적으로 어떤 화합물들을 함유하고 있고 또 이들이 어떤 기작을 통하여 과일의 선도유지 효과를 나타내는지에 대해서는 추후 연구가 필요하다고 생각된다.

Keywords

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