• Title/Summary/Keyword: 곶감

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Effects of Grapefruit Seed Extract Pretreatment and Packaging Materials on Quality of Dried Persimmons (자몽종자추출물 처리와 포장방법에 따른 반건시 곶감의 품질 변화)

  • Park Hyung-Woo;Cha Hwan-Soo;Kim Sang-Hee;Park Hye-Ran;Lee Seon-Ah;Kim Yoon-Ho
    • Food Science and Preservation
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    • v.13 no.2
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    • pp.168-173
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    • 2006
  • To investigate the effect of grapefruit seed extract pretreatment and packaging materials on the quality of dried persimmon, dried persimmons were stored for $60{\sim}100$ days at room temperature $(15^{\circ}C)$ after dipping in grapefruit seed extract and then packing with LDPE (low density polyethylene) film and Nylon/LDPE film pouch $(30{\times}30cm^2)$. Weight loss of dried persimmon packaged with Nylon/LDPE film was not exceeded 86% of control. 60% mold occurrence and 50% browness were observed compared to control. There were no significant differences in the firmness, soluble solid content and color between grapefruit seed extract pretreatment and control. Grapefruit seed extracts pretreatment had an effect on the inhibition of color change in Hunters value.

Chemical Compositions and Microscopic observation of White Powder Formed in the Surface of Dried Persimmon (곶감표면에 생성되는 백색분말의 화학조성 및 현미경적 관찰)

  • Moon, Kwang-Deok;Lee, Nak-Hoon;Kim, Jong-Kuk;Kim, Jun-Han
    • Journal of the Korean Society of Food Culture
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    • v.11 no.1
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    • pp.1-5
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    • 1996
  • Chemical composition and microscopic observation of white powder developed in the surface of dried persimmon which produced in several region in Korea were studied. Sugar content in flesh of dried persimmon was $56{\sim}59%$ and composed of glucose and fructose. White powder developed in the surface of dried persimmon was composed of sugar 84.6%, moisture 12.5% and insoluble matter 2.7%, respectively. The major sugar of white powder was glucose with 83.3% and fructose was 16.7%. With scanning electron microscopic obsevation, white powder was seen the shape like a plate, flower, needle and horn, and it was similiar to the shape of recrystalized glucose after hydration. White powder in surface of dried persimmon was seemed that glucose and fructose in flesh were migrated with moisture to drying surface during drying process and glucose was crystalized in the surface of dried persimmon.

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Quality Change of Chill-stored Dried Persimmons Affected by Cinnamon Extract Pre-treatment and Packaging Condition (계피전처리와 포장조건이 저온 저장 곶감의 품질변화에 미치는 영향)

  • Park, Hyung-Woo;Kim, Sang-Hee;Lee, Sun-Ah;Park, Jong-Dae
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.18 no.1_2
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    • pp.9-14
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    • 2012
  • The dried persimmons are susceptible to fungal decay, browning, textural hardening during storage and marketing at ambient temperature. To resolve these problems in commercial storage, chilled storage at $0^{\circ}C$ was tried with cinnamon extract pre-treatment and different packaging conditions measuring the quality changes of dried persimmons for 160 days. Nylon/LDPE package among 6 tested package conditions was the best in maintaining the quality. The rate of weight loss, fungal decay, browning, hardening were the least in this package. Pre-treatment of cinnamon extract in quality of dried persimmons was effective in quality preservation.

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Effect of Packaging Materials and Methods on the Storage Quality of Dried Persimmon (포장재 및 포장방법이 저장곶감의 품질에 미치는 영향)

  • Park, Hyung-Woo;Koh, Ha-Young;Park, Moo-Hyun
    • Korean Journal of Food Science and Technology
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    • v.21 no.3
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    • pp.321-325
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    • 1989
  • Storage quality dried persimmons was evaluated by 5 scale scoring hedonic sensory analysis in various packaging methods and materials. Dried persimmons were deteriorated within 1 months of storage in polyethyene(PE, 0.08mm) and 1.5-2.5 months in nylon(PA/PE, 0.1mm) packages at room temperature, But those were kept good quality for 5 months of storage in PA/PE package and for 8 months in $CO_2$ or $N_2$ gas filled polyester/aluminum/casteded polypropylene(PET/Al./CPP, 0.1mm) package at $5^{\circ}C$. Dried persimmon had the best quality in water content of 37% and at humidity 75% and its shelf-life was noticialy prolonged by low temperature.

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Microbiological changes and quality characteristics of dried persimmon by chlorine dioxide gas fumigation treatment (이산화염소 가스 훈증 처리에 따른 곶감의 미생물학적 변화 및 품질특성)

  • Moon, Hey-Kyung;Lee, Su-Won;Lee, Wha Jin;Hossein, Abul;Lee, Seul;Kim, Jong-Kuk
    • Food Science and Preservation
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    • v.24 no.5
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    • pp.608-614
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    • 2017
  • This study was conducted to investigate the effect of chlorine dioxide fumigation as a substitute for sulfur fumigation which has been used as a method to prevent the quality change of persimmon during storage and distribution process. Dried persimmons were treated with chlorine dioxide gas concentration (0, 15 30, and 45 ppm) and time (0, 15, 30, and 45 min) and microbiological changes, texture properties and color of the treated samples were investigated during storage at room temperature. Total aerobic bacteria, yeast and mold numbers after chlorine dioxide gas fumigation were decreased when compared with the control group. The inhibitory effects of total aerobic bacteria, yeast, and mold were observed during storage. The texture properties and color value of dried persimmons were not affected by chlorine dioxide gas fumigation concentration and time. There was no difference in quality between chlorine dioxide gas fumigation treatment group and control group. These results suggested that chlorine dioxide gas fumigation treatment can be utilized as a processing technique to secure microbiological storage stability of dried persimmons.

농산부산물의 기능성 식품화 연구: 곶감 부산물의 유용성분과 생체기능성

  • Jeong, Sin-Gyo
    • Proceedings of the Korean Society of Life Science Conference
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    • 2002.05a
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    • pp.9-16
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    • 2002
  • 농산부산물 중 식품화 요건이 비교적 적합한 곶감부산물을 기능성 소재로 활용하고자 전처리에 따른 유용성분인 카로티노이드의 함량변화를 조사하였다. 조추출물의 항고혈압활성 및 동물실험에 의한 항당뇨 및 지질대사 개선 효과를 조사하였다. 1. 농산부산물의 기능성 식품화에는, 함유 성분의 특정 생체 기능성, 수집성, 함수율, 안전성 등의 요건이 만족될 필요가 있다. 2. 입도와 건조온도에 따라 보존기간 중 감피의 총카로티노이드와 베타카로틴의 함량은 60일 후에 80% 정도 감소하였으며 입도가 적을수록 감소폭이 컸다. 3. 감과피의 메탄올 조추출물에 대한 항고혈압성은 $11.76{sim}58.61%$의 저해활성을 보여 품종별로 다소 차이를 보였다. 4. Streptozotocin으로 당뇨를 유도한 실험쥐에 대하여 감껍질 분말의 혈당강화 및 지질대사의 개선능력을 검정한 결과 혈당치, 총지질 및 중성지질, 총콜레스테롤의 함량이 대조구에 비하여 유의적으로 낮았다.

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