Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Changes in the Quality of Peeled Chestnut Achieved by Browning Inhibition Treatments During Storage

갈변저해제 처리에 따른 저장 중 박피밤의 품질 변화

  • Oh, Sung-Il (Division of Forest Special Products, National Institute of Forest Science) ;
  • Kim, Chul-Woo (Division of Forest Special Products, National Institute of Forest Science) ;
  • Lee, Uk (Division of Forest Special Products, National Institute of Forest Science)
  • 오성일 (국립산림과학원 산림소득자원연구과) ;
  • 김철우 (국립산림과학원 산림소득자원연구과) ;
  • 이욱 (국립산림과학원 산림소득자원연구과)
  • Received : 2019.10.14
  • Accepted : 2019.11.04
  • Published : 2019.12.31
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Abstract

The effects of dippin treatments using Glycyrrhiza uralensis extract (0.5%, 1.0%, 2.0%) and calcium chloride (0.5%, 1.0%, 2.0%) on the quality of peeled chestnuts were investigated. Following dipping treatment, peeled chestnuts were vacuum-packed using a 75-㎛ polyethylene PE and nylon film, and stored in a 0 ℃ incubator for six weeks. The dipping treatments of the peeled chestnuts successfully achieved browning inhibition. The browning degree following 2.0% calcium chloride treatment was the lowest at 0.68 OD. The color change (ΔE) of the peeled chestnuts was the highest (6.0) in the control, and the lowest (3.5) for the 1.0% and 2.0% calcium chloride-treated samples. G. uralensis extract and calcium chloride treatments did not impact weight, moisture loss rate, firmness, or the soluble solid content of the peeled chestnuts following storage. The decay rate was 12.0% in the control group, and 11.0%, 11.5%, and 11.0% for G. uralensis treatment at 0.5%, 1.0%, and 2.0% calcium chloride treatment, respectively, and 13.0%, 9.5%, and 9.0% at 0.5%, 1.0%, and 2.0% calcium chloride treatment, respectively. Sensory evaluation (palatability, off-odor) showed that a 2.0% G. uralensis extract treatment presented excellent results during the storage period. Texture and color indicated no differences as a result of the browning inhibition treatments. Therefore, when considered comprehensively, a 2.0% G. uralensis extract treatment was shown to be effective for maintaining the quality and providing browning inhibition of peeled chestnuts. This result isexpected to solve the problem of quality deterioration in the form of sour taste, which is a problem in chemical processing.

박피한 밤을 갈변저해제(감초 추출물 : 0.5, 1.0, 2.0%; 염화칼슘 : 0.5, 1.0, 2.0%) 용액에 침지 처리한 후 PE+Nylon재질의 필름으로 진공포장하여 0℃ 저온저장고에서 6주 동안 박피밤의 품질에 미치는 영향을 조사하였다. 갈변도는 갈변저해제 처리구가 무처리구보다 낮게 나타났다. 특히 2.0% 염화칼슘 처리구의 갈변도가 0.68 O.D.로 가장 낮았다. 저장 6주 후 박피밤의 표면 색변화(ΔE)는 무처리구에서 6.0으로 가장 높았던 반면, 1.0 및 2.0%염화칼슘 처리구에서 3.5로 가장 낮게 나타났다. 저장기간 동안 갈변저해제 처리는 박피밤의 품질(수분 및 중량감소율, 당도, 경도)에 영향을 미치지 않았다. 저장 6주 후 부패율은 무처리구에서 12.0%로 나타났으며, 감초 추출물 0.5%, 1.0%, 2.0% 처리구에서 각각 11.0%, 11.5%, 11.0%, 염화칼슘 0.5%, 1.0%, 2.0% 처리구에서 각각 13.0%, 9.5%, 9.0%로 나타났다. 관능평가(식미, 이취)는 2.0% 감초 추출물 처리구가 저장기간 동안 우수한 것으로 나타났으며, 식감 및 색은 갈변저해제 처리간 차이가 나타나지 않았다. 따라서 종합적으로 판단하였을 때 2.0% 감초 추출물 침지처리가 박피밤의 품질유지 및 갈변저해에 효과적이었으며, 화학적 처리 시 문제점인 신맛 등 관능적 품질이 낮아지는 것을 해결할 수 있을 것으로 기대된다.

Keywords

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