• Title/Summary/Keyword: 산점도

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Encapsulation of Pine Agaric ( Tricholoma matsutake) Flavor with Alginates (알긴산을 이용한 송이 향의 캡슐화)

  • You Byeong Jin;Lim Yeong seon
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.35 no.3
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    • pp.231-236
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    • 2002
  • Encapsulating 1-octen-3-ol with alginates solution, the effects of physical properties (viscosity, emulsion activity, emulsion stability) of alginates solutin on the retention of 1-octen-3-ol in capsules were investigated. Only alginates solutions haying less than 350 cP in viscosity were capable to be adopted to spray dry. Adding citric acid to alginates solution in order to reduce its viscosity, the concentration of citric acid became higher, the viscosity of alginates solution were lower. Adding $0.1\% of citric acid could reduce viscosity of alginates solution to 150 cP. The viscosity of alginates solution after emulsifying showed higher value than that of solution before emulsifying, but its viscosity were within the possible ranges for spray drying. The lower viscosity of alginates solution were, EAI became higher but ESI and amount of remaining 1-octen-3-ol in capsules were lower, In reducing the viscosity of alginates solutions, heating time after adding citric acid were longer, the their viscosity became lower. Differences of viscosity of alginates solution after and before emulsifying were little, In encapsulating raw pine agaric with alginates solution, the adding amount of soybean oil increased, the amounts of remaining 1-octen-3-ol in capsules increased. After freeze drying the amount of remaining 1-octen-3-ol in alginates capsules prepared with raw pine agaric was higher than that after cold air flow drying.

Flavor Compounds and Physicochemical Properties of Low-fat Functional Sausages Manufactured with Chitosans during Refrigerated Storage (키토산을 첨가한 저지방 기능성 소시지의 향미 성분 분석과 냉장 저장 중의 이화학적인 특성)

  • Park, Sung Y.;Chin, Koo B.;Yoo, Seung S.
    • Food Science of Animal Resources
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    • v.25 no.3
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    • pp.285-294
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    • 2005
  • The objective of this study was to evaluate the physico-chemical properties and flavor compounds of sausages with various levels and molecular weight (MWs) of chitosans, during storage at $4^{\circ}C$. Various MWs (Low: 1.5 kDa; Medium: $30{\sim}50$ kDa; High: 200 kDa) and two levels (0.3 and $0.6\%$) of chiosans were dissolved and measured the viscosity at $4^{\circ}C$, pH values were not affected (p>0.05) by either MWs or levels of chitosans. The addition or high MWs or chitosan into the pork salt soluble protein (SSP) increased the viscosity, whereas no differences were observed in low and medium MWs of chitosan. Textural profile analysis (TPA) was affected by the addition of medium or high MWs of chitosan. As a result, the addition of medium of chitosan increased the hardness, gumminess, chewiness, cohesiveness and springiness values, whereas increased level of chitosan didn't affect TPA values, except few cases. Approximately twenty-nine flavor compounds were identified in the low-fat and regular-fat sausages, however the addition of chitosans didn't impair the flavor composition of the sausages, These results indicated that the addition of chitosans didn't affect the flavor profiles, but affected the textural properties in the sausages, especially MWs higher than 30 kDa.

수입육과 차별화를 위한 돼지고기 음식점 원산지 표시제도

  • Gang, Gwang-Pa
    • The Korea Swine Journal
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    • v.29 no.6 s.334
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    • pp.144-146
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    • 2007
  • 품질의 차이가 분명히 있음에도 불구하고 소비자들이 우리 돼지고기를 선택하기 위한 객관적인 기준 제시가 부족한 것이 현실이다. 또한 수입산 삼겹살이 국내산으로 둔갑되어 판매되더라도 아무런 제재가 없없던 점도 소비자와 생산자 모두에게 큰 피해를 안겨줬다. 이러한 돼지고기 유통 상황을 고려할 때 더 이상 소비자, 생산자의 피해를 야기시키지 않기 위해서 돼지고기 음식점 원산지 표시제는 빠른 시일 내에 시행되어야 한다.

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한국산 쌀의 맥주 부원료로서의 특성

  • 이원종;조미경;정구민
    • Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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    • 2003.10a
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    • pp.213.3-214
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    • 2003
  • 국내에서 생산된 쌀 6품종의 맥주제조특성을 국내 및 미국의 맥주회사에서 사용되는 쌀로가 비교해 볼 때 국내쌀의 수분함량은 11.4∼12.6% 로 미국 맥주회사에서 사용되는 쌀의 수분함량 10.7% 보다 높았다. 장립종(long grain)이며 Indica 품종인 IR36은 전분량이 적으나 단백질 함량이나 amylose 함량이 높았다. 맥아 60%에 쌀 40%를 혼합하여 맥즙을 제조한 결과 색, 점도, pH, 수용성단백질, 추출물 함량(% extract), 당의 조성에서 Indica 품종은 Japonica 품종과 큰 차이를 나타내지 않았다. 국내에서 생산되는 쌀로 제조된 맥즙은 수용성 단백질, pH, 점도 등에서는 미국산 쌀로 제조된 맥즙과 큰 사치를 나타내지 않았으나 추출물함량은 약간 낮은 것으로 나타났다. 쌀을 혼합하여 제조한 맥즙의 glucose 와 maltose 함량은 맥아만으로 제조된 맥즙보다 더 낮았다.

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Studies on the Fauna of the Soil Microarthropods in Forest Floor (산림토양의 절지 동물상에 관한 연구)

  • Woo, K.S.;Choo, H.Y.;Chung, K.
    • Korean journal of applied entomology
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    • v.26 no.3 s.72
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    • pp.133-138
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    • 1987
  • This study was conducted during Oct. 1986$\sim$Apr. 1987 to investigate the distribution, dominance and species diversity of soil arthropods communities from two collection sites of Suwon and Mt. Jiri. A total of 2,989 specimens of 3 orders, 20 families and 19 species were identified. In overall dominance index, Suwon community showed lower value than Mt. Jiri community. Seasonal variation dominance index were higher in Suwon community than those in Mt. Jiri community.

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키토산 첨가가 여러 가지 전분으로 제조한 오미자 젤리의 품질특성에 미치는 영향

  • 류현주;오명숙
    • Proceedings of the Korean Society of Food and Cookery Science Conference
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    • 2003.05a
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    • pp.90-90
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    • 2003
  • 겔상 식품중에서 오미자 젤리는 우리나라의 전통식품으로 활발한 이용이 기대되며, 키토산은 다양한 생리활성을 가지는 것이 알려져 최근 주목받고 있는 첨가물이다. 본 연구에서는 녹두전분, 동부전분, 옥수수전분 등 3종류의 전분에 오미자즙을 첨가하고 1% chitosan을 첨가한 오미자 젤리를 제조하여 각 전분의 RVA에 의한 점도 특성, 겔의 색도, 이수율 및 파단 특성, TPA 특성 등의 텍스쳐 특성을 조사하고, 관능검사를 실시하였다. RVA 특성치를 보면 키토산의 첨가에 의해 녹두, 옥수수전분의 호화온도는 무첨가와 비교하여 높아져 호화가 지연되었고, 동부전분의 호화온도는 7%, 8%농도에서 낮아졌다. (중략)

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Endochitosanase Produced by Bacillus sp. P2l as a Potential Source for the Production of Chitooligosaccharides. (키토산 올리고당의 제조용 소재로서 Bacillus sp. P2l 기원의 키토산분해효소)

  • 박노동;조유영;이현철;조종수;조도현
    • Microbiology and Biotechnology Letters
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    • v.26 no.4
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    • pp.345-351
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    • 1998
  • In an effort to develop a potent system for the production of various dp (degree of polymerization) chitooligosaccharides, 32 enzymes or microbial systems were screened for chitosanolytic acitivity using chitosan as a substrate. The efficiency of each enzyme system was evaluated by the changes of turbidity and viscosity of chitosan solution, the amount of precipitate and the reducing sugar-producing activity in the enzymatic reaction mixture. Based on these assay methods for the chitosanase activity, Bacillus sp. P2l out of 32 screened systems showed highly potent endochitosanase, which was comparable with a commercially available enzyme (E7). Chitooligosaccharides of dp 3-7 were separated by TLC as major enzymatic reaction products, suggesting that the chitosanase from Bacillus sp. P2l be endo-splitting type.

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Comparison on the Appropriateness of Glutinous Rice for Making Rice-cake (미과제조용(米菓製造用) 나미(糯米)의 적성(適性)에 관(關)하여)

  • Kim, Dong-Youn
    • Korean Journal of Food Science and Technology
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    • v.4 no.3
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    • pp.179-181
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    • 1972
  • The physicochemical properties of Korean glutinous rice was compared with those of foreign one in order to investigate their appropriateness as raw materials for making rice-cake. The results are summarized as follows: 1) It was found that the Korean ed more crude protein and less total sugar than the foreign one. Therefore, the Korean variety appears to have a higher value of protein. 2) The Korean glutinous rice appeared more plentiful in crude fat and crude fibre content than those of the foreign one. Judging from this fact, it was found out that the Korean glutinous rice had a lower rate of husking and cleaning. 3) The purity of grain in Japanese glutinous rice was highest with 90.2% and the Kyungki glutinous rice was lowest with 47.4%. 4) While showing a low viscosity, the Honam glutinous rice, strange enough, also showed a low dextrinizing temperature.

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