• 한국수산과학회지
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• 제7권2호
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• pp.63-68
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• 1974

The growth of sea weeds is greatly affected by the environmental conditions of ambient water. Especially nutrient salts in sea water function as a major factor to the growth of lavers, so that the content of inorganic substances in lavers could he a criterion for quality evaluation of lavers. In this experiment, the relation between the quality and the content of Zinc and Magnesium which are not only physiologically active and closely related with pigments such as chlorophll and phycobilins but also important in quantify is discussed if such a measurement to be an index for quality evaluation. Sixteen samples of layers were collected from three different culture farms, 7 from Jangrim-Busan, 6 from Wando-Jeon Nam, 3 from Hadong-Gyeong Nam, and classified into 3 quality grades to each farm and to whole samples by organoleptic test. Zinc and Magnesium were analyzed by atomic absorption spectrophotometry. For pigment analysis, chlorphyll was extracted with 85 percent acetone, filtered and the absorbance was measured at 660 nm and the residue was further extracted with phosphoric buffer solution to determine the optical density for phycobilins at 560 nm. The result showed that the total content of Zinc and Magnesium varied between the farms, but kept consistent with quality grades from the same farm. The Zinc content was correlated proportion- ally with the content of phycobilins, and Magnesium content in total ash could roughly represent the content of chlorophll except some examples in which the Magnesium content of chlorophyll-ext ractresiduewasexceptionallyhigher. In conclusion the contents of these metals provide an applicable index for quality judgment of lavers.

• 한국환경보건학회:학술대회논문집
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• 한국환경보건학회 2005년도 가을학술대회
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• pp.101-103
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• 2005

This study was performed to investigate the changes of Bacillus sp. of traditional Korean soy sauce (kan-jang) and soybean paste (doen-jang) during the ripening and storage for 12 months. All of the preparation methods for soy sauce and soybean paste followed the recommendations of the Korea Food Research Institute. The soy sauce and soybean paste were analyzed at 0, 6, and 12 months. The numbers of Bacillus sp. of meju (soybean cakes) or soy sauce and soybean paste at the initial stage were significantly higher than those of soybeans (p<0.05). The number of Bacillus sp. increased in soy sauce and soybean paste after 12 months of ripening and storage. This study indicates that this comes from the preparation and fermentation of meju. It is suspected that the organoleptic characteristics of soy sauce and soybean paste might be inferior over 1 year of storage time. Therefore, more research fur overall microbiological quality changes of soy sauce and soybean paste during the storage period should be conducted to interpretate this characteristics more accurately.

• 한국어업기술학회:학술대회논문집
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• 한국어업기술학회 2003년도 춘계 수산관련학회 공동학술대회발표요지집
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• pp.89-90
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• 2003

Fermented fish (jeotkal) has been used as a method of preserving perishable fish and marine products. Recently, however, high salted jeotkal (20% and more) has avoided from consumer by reasons of organoleptic quality (high salinity), health value (degenerative chronic disease), and hygienic safety. Among these jeotkals, meanwhile, sikhae (lactic acid fermented fishes) has been traditionally favored in the eastern coastal area of Korea, which contain below 10% of salt content with acidic range (pH4∼5). (omitted)

• 대한가정학회지
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• 제30권3호
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• pp.119-129
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• 1992

Black soybeans were gamma-irradiated at dost levels of 0, 2., 5, 10 and 20 kGy, and stored at room temperature for the experiments associated with cooking quality. The degree of cooking of soybeans in boiling water at 98-10$0^{\circ}C$ has been determined by measuring the maximum cutting force of cotyledon. The cutting force to reach a complete cooking was about 120~130g/g. Irradiation at 2.5~20kGy caused the reduction of cooking time in black soybeans by 30~60% compared to the nonirradiated control, and the cooking rate constant of the irradiated samples was higher than that fo the nonirradiated control sample. These results were similarly found in the stored samples for one year at room temperature after irradiation. Color characteristics of cooked samples showed no significant difference between the nonirradiated control and 5 kGy-irradiated sample. After complete cooking of black soybeans, there were not significant in the organoleptic qualities between the nonirradiated and irradiated samples.

• 한국식품영양과학회지
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• 제27권2호
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• pp.268-274
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• 1998

The traditional kanjang has been prepared by mixing meju and 18% saline solution, and fermenting for 60 days. The traditional kanjang is very salty and inferior in flavor and taste comparing with commercial fermented soy sauce. To improve the quality of traditional kanjang, Zygosaccharomyces rouxii H-62, a flavor-related mutant, was inoculated during fermentation. It was found that the addition of Z rouxii helped to improve the organoleptic quaity of traditional kanjang. The optimal condition for preparing traditional kanjang was to use 5L of 15.5% saline solution per meju. Meju must be cut into 12 pieces to get a proper total nitrogen and pure extract content. The optimal fermentatin temperature was 3$0^{\circ}C$. The prepared kanjang contained over 0.8% total nitrogen and 6.0% pure extract after 60 days of fermentation.

• 한국축산식품학회지
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• 제40권4호
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• pp.563-577
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• 2020

This study assessed breed differences in fatty acid composition and meat quality of Longissimus thoracis et lumborum (LTL) and semitendinosus (SE) of Angus×Chinese Simmental (AS), Wagyu×Chinese Simmental (WS), and Chinese Simmental (CS). CS (n=9), AS (n=9) and WS (n=9) were randomly selected from a herd of 80 bulls which were fed and managed under similar conditions. Fatty acid profile and meat quality parameters were analyzed in duplicate. Significant breed difference was observed in fatty acid and meat quality profiles. AS exhibited significantly (p<0.05) lower C16:0 and higher C18:1n9c compared with CS. AS breed also had a tendency (p<0.10) to lower total saturated fatty acid (SFA), improve C18:3n3 and total unsaturated fatty acid (UFA) compared with CS. Crossbreed of AS and WS had significantly (p<0.05) improved the lightness, redness, and yellowness of muscles, and lowered cooking loss, pressing loss, and shear force compared with CS. These results indicated that fatty acid composition and meat quality generally differed among breeds, although the differences were not always similar in different tissues. Fatty acid composition, meat color, water holding capacity, and tenderness favored AS over CS. Thus, Angus cattle might be used to improve fatty acid and meat quality profiles of CS, and AS might contain better nutritive value, organoleptic properties, and flavor, and could be potentially developed as an ideal commercial crossbreed.

• 한국식품저장유통학회지
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• 제14권2호
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• pp.142-147
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• 2007

우리의 식탁에 사용 빈도가 높은 강낭콩조림을 선정하여 전통적으로 조리되는 과정과 재료의 혼합비를 파악하고 보존 hurdle로서 가열조리조건을 조절하여 강낭콩조림의 저장 안전성을 향상시키고자 하였다. 강낭콩 150g 기준에서 설탕 40g, 간장 30g, 물엿 30g인 배합비 하에서 가열조리시간을 25-50분으로 달리하여 조리하여 제품을 가공한 다음, $10^{\circ}C$에서 20일간 저장 중 품질 변화를 측정하였다. 장시간의 가열조리인 50분 가열에서는 저장 10일째 곰팡이가 생성되어 섭취하기에는 불가하였다. 그리고 40분 가열에서는 저장 20일째 총균수가 log 값 3.6으로 가장 높았다. 따라서 미생물균수는 가열시간이 짧은20분과 30분이 낮았다. 경도에 있어서는 50분의 긴 가열시간이 강낭콩의 과도한 경도상승을 야기시켜 바람직하지 못하였다. 강낭콩조림의 가열조리시간을 30분 동안 가열하여 남는 액의 비율을 70%로 하여 강낭콩 알이 침지될 수 있도록 저장하는 것이 물리화학적, 미생물학적 품질변화와 함께 관능적인 품질에서 가장 적절한 것으로 나타났다.

• 한국식품저장유통학회지
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• 제12권3호
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• pp.252-256
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• 2005

저장 중 포장 참외의 품질 유지를 위하여 포장과 세척방법을 달리하면서 참외에 대한 품질 평가를 실시한 결과, 저장기간의 경과에 따라 중량 및 경도는 감소하였으며 저장 12일 후부터는 오존수를 이용하여 세척한 처리구를 제외한 모든 구에서 심한 부패 및 손상이 발견되었다. 또한 관능평가 결과, 오존수 세척구에서 색, 외관, 맛, 조직감 모두 가장 높은 점수를 얻었으며 저장 후기에도 반점이 거의 생성되지 않고 부패정도가 가장 미비하여 외관에 대한 우수한 관능적 평가를 얻었다. 따라서 오존수 세척 후 통기성 있도록 박스포장을 하는 것이 참외의 유통 중 품질 유지에 효과적이라고 사료된다.

• 한국식품조리과학회지
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• 제22권1호
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• pp.45-55
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• 2006

The purpose of this study was to determine the optimal mixing conditions of three different amounts of spinach powder, butter and egg for the preparation of spinach muffins. The mixing condition for spinach muffins was optimized by response surface methodology. Egg was the most influential on height. The maximum point was achieved with 30.08 g of spinach powder, 247.69 g of butter and 184.97 g of egg. The optimum mixing rates of spinach power, butter and egg were 29.51 g, 252.24 g and 192.33 g for color, 32.43 g, 249.87 g and 180.90 g for overall quality and $28\sim34\;g,\;250\sim260\;g\;and\;175\sim210\;g$ for maximum score of overall organoleptic quality, respectively.

• 한국축산식품학회지
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• 제35권2호
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• pp.216-224
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• 2015

The objective of present study was to evaluate the effects of the application of chitosan and chitosan/whey protein on the chemical, microbial and organoleptic properties of Göbek Kashar cheese during ripening time (on 3^rd, 30^th, 60^th and 90^th d). Difference in microbiological and chemical changes between samples was found to be significant (p<0.05) during ripening period. Cheese samples with edible coating had statistically lower mould counts compared to the uncoated samples. Furthermore the highest and lowest mould counts were determined in control (4.20 Log CFU/g) and other samples (<1 Log CFU/g) at 60^th and 90^th d of storage. All samples exhibited higher levels of water soluble nitrogen and ripening index at the end of storage process. At the end of 90 day storage period, no signicant dierences in salt and fat values were observed among the cheeses studied. The edible coatings had a beneficial effect on the sensory quality of cheese samples. In the result of sensory analysis, while cheese C and the chitosan coated cheese samples were more preferred by the panellists, the chitosan/whey protein film-coated cheese samples received the lowest scores. This study shows coating suggests could be used to improve the quality of cheese during ripening time.