• 한국수산과학회지
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• 제48권1호
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• pp.26-35
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• 2015

This study compared the meat quality of sea rainbow trout Oncorhynchus mykiss frame muscle (S-FR-TY) and fillet (S-FI-TY) with the frame muscle of freshwater rainbow trout (F-FR). There was a difference of < 1% in the proximate composition of S-FR-TY vs. S-FI-TY, and of S-FR-TY vs. F-FR. The Hunter a value of F-FR-TY was lower compared with that of F-FR cultured in Jecheon (F-FR-JC), but higher than that of F-FR cultured in Pyeongtaek (F-FR-PT). However, no difference in the Hunter a value of S-FR-TY compared with any other F-FR was observed. The odor intensity of S-FR-TY was lower compared with that of F-FR, while the taste of S-FR-TY was milder than that of S-FI-TY, but stronger than that of F-FR. Although its total amino acid content was lower, the essential amino acid content of S-FR-TY was higher compared with S-FI-TY; the potassium content of S-FR-TY was also significantly greater. S-FR-TY contained high levels of nutritional and functional components, such as anserine, lysine, threonine, and eicosapentaenoic and docosahexaenoic acid. These results suggest that S-FR-TY could be used as a resource of canned food or fish jerky for children.

• 한국식품과학회지
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• 제23권2호
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• pp.248-250
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• 1991

대두유 첨가 도정쌀의 품질과 저장성을 규명하기 위하여 현백과정 중 도정이 거의 완료된 마지막 순환 도정단계에 대두유를 0.07 및 0.10% 첨가 도정하여 생산된 쌀에 대한 지방함량, 취반특성, 외관(색) 및 저장성을 조사하였다. 대두유 첨가 도정쌀의 지방함량은 무첨가가 0.65%인데 비하여 첨가 도정쌀은 $0.70{\sim}0.72%$였으며, 취반특성 즉 가열흡수율, 팽창용적, 용출고형물 및 요오드 정색도는 첨가 도정쌀이 무첨가 도정쌀 보다 낮았다. 그리고 색 즉 Hunter L, a, b값 및 백도는 무첨가 도정쌀에 비해 첨가 도정쌀이 낮아 ${\Delta}E$값이 높았다. 대두유 첨가 도정쌀의 저장 중 지방산도는 증가하였으나 첨가 및 무첨가 간에 큰 차가 없었다.

• 한국식품조리과학회지
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• 제21권3호
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• pp.326-338
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• 2005

The purpose of this study was to investigate the effect of isolate soybean protein (ISP) and rice flour on the characteristics of rice noodles. As the levels of ISP and rice flour increased, water binding capacity, swelling power of rice noodle increased. In RVA, pasting temperature, Set back showed an increasing tendency with peak viscosity, holding viscosity, break down, final viscosity of rice noodle increased as the level of rice flour by decreasing. Peak time was not significant. The weight, water absorption and volume of the cooked noodles were decreased. The turbidity of rice noodle increased. The Hunter color L, a-values of the dried rice noodle decreased. Cooked rice noodle quality increased with by decreasing the level of rice flour level. B-values of dried rice noodle and cooked rice noodle increased. Texture profile analysis of cooked rice noodle showed an increase of hardness. Adhesiveness, cohesiveness of cooked rice noodles decreased with by decreasing the level of ISP and rice flour. Gumminess, springiness, chewiness were increased. Sensory evaluation, showed gloss was increased. Hardness and chewiness of the cooked ice noodles were increased. Adhesiveness was not significant. Color and overall- acceptability were increased. Relationship between sensory and mechanical examinations (The overall quality of sensory examination for gloss) had a negative correlation with the mechanical examination for b-value (p.0.05). Mechanical examination for b-value had a positive correlation of sensory evaluation for hardness, chewiness, which had negative correlation of sensory evaluation for color. Scanning Electron, Microscopes observation of rice noodle was showed that the size of the hole grown was increased with by increasing the level of rice flour. From the above results, the most advisable mixture ratio of rice noodle evaluation was can be derived as follows: 171g rice flour, 114g wheat flour, 15g soybean protein isolate, 120ml water, and 6g salt.

• Applied Biological Chemistry
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• 제34권3호
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• pp.219-224
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• 1991

깍뚜기 저장성 향상에 효과가 있었던 절임시 소금액에의 KCI 첨가, 절인무우의 microwave 열처리 그리고 발효중반기에 혼합염 첨가가 깍뚜기의 색, 견고성 등 물리적 특성과 관능적 성질에 어떤 영향을 주는지 밝히고저 깍뚜기를 $25^{\circ}C$에서 발효시키고 저장을 $4^{\circ}C$와 $25^{\circ}C$에서 하면서 이들 성질을 비교하였다. 그 결과 무우의 견고성은 발효 및 저장을 하면서 전반적으로 감소함을 보여주었으나 $4^{\circ}C$ 저장에 있어서는 경도의 감소가 적었다. KCI의 첨가용액에서 절인 무우는 약간 높은 견고성을 보여주었고 혼합염의 첨가는 큰 영향이 없었다. Hunter 값으로 나타낸 깍뚜기액의 색은 발효나 저장기간이 증가하면서 "L"값이 증가하여 초기의 거의 투명했던 깍뚜기액이 우유색의 탁한 액으로 변함을 보여주었고, "a"값은 약간 감소와 "b"값은 약간 증가하였다. 혼합염을 첨가한 즉시의 깍뚜기액은 "L"값이 감소하였다가 다시 증가하는 경향을 보여주어 무기염에 의한 일부 유기물의 침전가능성을 보여주었다. 한편 관능적 평가는 절임시 KCI을 낮은 농도로 넣고 발효과정중 혼합염을 첨가한 깍뚜기가 품질에 유익한 영향을 주는 것으로 밝혀졌다.

• 한국식품저장유통학회:학술대회논문집
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• 한국식품저장유통학회 2003년도 제23차 추계총회 및 국제학술심포지움
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• pp.187-187
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• 2003

To examine the effect of packaging method on strawberry, tomato, and plum quality, the rate of weight loss, Hunter a value, decay rate, anthocyanin contents, and microbial (total bacterial counts, mold and yeast, and pseudomonas) changes were determined during storage. Strawberry was packaged with low density polyethylene (LDPE). Tomato and plum were packaged with high density polyethylene film (HDPE). Strawberries, tomatoes, and plums were then stored at 4$^{\circ}C$ and 20$^{\circ}C$, respectively. LDPE package was the most effective on the decrease of decay rate of strawberry and the rate of weight loss for packaged strawberry was lower than that of the non-packaged. HDPE package was the most effective on the rate of weight loss during storage of tomatoes and plums regardless of storage temperature. Hunter a value increased during storage. Anthocyanin contents of plums increased overall with increasing storage time, and plums stored without package were changed more than those with package. Microbial changes of strawberry, tomato, and plum stored at 4$^{\circ}C$ and 20$^{\circ}C$ were monitored during storage. Packaging method did not affect the microbial change, yet temperature did affect the microbial change significantly. These results indicate that storage of these commodities at 4$^{\circ}C$ should be recommended in terms ,of microbial safety as well as quality and shelf-life.

• 한국식품영양과학회지
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• 제32권1호
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• pp.137-142
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• 2003

오미자 추출물을 감마선 조사하여 색택 개선, 항산화성, 항균성에 대하여 실험하였다. 오미자의 추출 방법은 열수추출, ethanol, methanol 그리고 acetone으로 추출하였으며, 감마선 조사는 10, 20 그리고 30 kGy로 하였다. 감마선 조사 선량이 증가할수록 명도(Hunter color L-value)의 경우 비조사구보다 조사구가 월등히 밝은 색을 보였으며, 적색도(a값)와 황색도(b값)는 감소하는 결과를 보여줬다. TBA가 분석 결과는 ethanol로 추출한 경우 가장 높은 항산화력을 확인하였다. 전자 공여능의 측정 결과는 열수 추출한 경우에 비조사구와 조사구 모두 가장 활성이 높았으며 ethanol과 methanol의 경우에는 비조사구와 비슷한 활성을 보여줬다. 오미자 추출 용매별 및 감마선 조사 선량에 따른 항균효과는 B. subtilis, B. natto, B. megaterium, S. aureus, Sal, typhymurium과 E. coli 등 모든 균주에 대해 아주 높은 항균 활성을 나타내었다. 또한 오미자 추출물은 30 kGy까지 감마선을 조사하여도 추출물의 생리 활성에는 영향을 미치지 않았다 따라서 감마선 조사 기술은 천연 식품 보존제 및 화장품 원료로서 사용하기 위한 오미자 추출물의 색택 개선에 활용 가능성이 높을 것으로 기대된다.

• Applied Biological Chemistry
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• 제40권5호
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• pp.400-403
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• 1997

본 실험에서는 생마늘을 소금물에서 $100^{\circ}C$로 가열하고 급냉하여 제조한 무취마늘과 생마늘의 일반성분, 유리당, 아미노산, 지방산 및 색도의 변화를 조사하였다. 일반성분 중 조섬유, 조지방 및 회분의 함량은 거의 변화가 없으나 환원당은 약 15%, 조단백질의 함량이 약 27% 감소되었다. 유리당 성분은 glucose가 증가된 반면에 sucrose와 maltose는 감소되었다. 총 아미노산은 30% 정도가 감소되었는데, 그 중 arginine, isoleucine등이 이 감소되었다 생마늘에 가장 많이 함유된 지방산은 linoleic acid 59.53%이었으며, 그 다음은 oleic acid 10.05%이었고, lauric acid가 0.24%로 가장 적었다. 그리고 무취 마늘에서는 linoleic acid 39.74%, behenic acid 15.35%였으며, lauric acid가 0.37%로 가장 적었다. 색도는 L, b 값은 거의 변화가 없으나 a값은 약간 감소하는 경향이었다.

• 한국식품조리과학회지
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• 제13권1호
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• pp.16-22
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• 1997

This investigation was undertaken for the purpose of studying the quality and sensoryptability of Jangduck during storage containing various levels of glutinous rice flour. Composition of experiment Jangduck made with different components and contents. A standard samples of Jangduck were soybean paste : glutinous rice flour : ground beef : green onion : garlic : toasted white sesame=100 : 10 or 20 or 30 : 30 : 10 : 5 : 2 (％) and measured acceptability by 15 days. Jangduck estimated for texture characteristics through acceptability. The acceptability of Jangduck was by both objective and subjective methods. Objective measures were made utilizing the Rheometer and Hunter colorimeter. Sensory evaluated was done by a panel of 10 judges. The data analysis revealed following as for estimate of texture changes during storage by Rheometer, the hardness tended to increase as the addition level of glutinous rice flour and beef till 30 days. Hardness decreased slightly after 30 days of storage. Elasticity and cohesiveness tended to increase as the addition level of glutinous rice flour till 15 days and decreased slightly from 16 days to 60 days later By color value of Jangduck, Lightness tended to increase as the addition level of beef during storage periods. Redness tended to increased as addition level of beef before storage and decreased 15 days later. Yellowness increasde than others from days later to 15 days later as the addition level of glutinous rice flour. The result of sensory evaluation revealed that Cl [soybean paste : glutinous rice flour : ground beef : green onion : garlic : toasted white sesame=100 : 30 : 30 : 10 : 5 : 2(％)] produced the best quality in most sensory characteristics during storage.

• 동아시아식생활학회지
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• 제16권6호
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• pp.717-723
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• 2006

Chemical characteristics of soybean oil after deep-frying with potato sticks (200 g, 10% w/w of soybean oil) were studied according to the 34 deep-frying times. After consecutive 34 deep-frying, total polyunsaturated FA contents was gradually decreased while the total saturated FA and trans FA were increased. Acid value and peroxide value were increased while iodine value decreased, respectively. The Hunter $L^{\ast}$ value decreased while each $a^{\ast}\;and \;b^{\ast}b$ value were gradually increased. Electronic nose equipped with 12 metal oxide sensors was used for the discrimination of odor pattern of frying oils against the times of deep-trying. The proportions of 1st and 2nd principal component analysis showed 75.97% and 21.23%, respectively. While 6 among total 12 sensors well responded to discrimination of odor in the repented frying oils, suggesting that the odor pattern of each oil after deep-frying would be discriminated against fresh soybean oil, especially after 14 times. From the results, electronic nose could differentiate the degree of quality deterioration of the repeated deep-frying oils.

• 생물환경조절학회지
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• 제22권4호
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• pp.432-438
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• 2013

숙도(60%, 80%), 예냉온도($0^{\circ}C$, $4^{\circ}C$)와 광조사 유 무가 수출용 딸기 '매향'의 저장성에 미치는 영향을 알아보고자 본 연구를 수행하였다. 2012년 4월 3일에 숙도 60%와 80%의 과실을 진주지역의 온실에서 수확하여 30분 만에 실험실로 수송하였다. 실험실의 예냉고에서 2~5시간 동안 각각 $0^{\circ}C$와 $4^{\circ}C$로 예냉한 딸기를 즉시 $6^{\circ}C$로 설정되어 있는 챔버에 13일간 저장하면서 딸기의 경도, 당도, 품질등급, 산도, 색도, 무게 변화 그리고 잿빛곰팡이 발생률을 4월 5일부터 4월 17일까지 이틀 간격으로 조사하였다. 경도는 7일 째까지 감소하는 추세를 보이다 9일 째부터 다시 증가했으며, 처리구들 사이에서는 60% 숙도의 $0^{\circ}C$ 예냉 후 광을 조사하지 않은 처리구에서 신선도가 가장 오래 유지되었다. 당도는 3일째 까지 80% 숙도의 딸기가 60% 숙도의 딸기 보다 높았다. 품질등급은 광을 조사한 80% 숙도의 딸기 처리구에서 60% 숙도의 딸기보다 급격하게 하락했다. Hunter 'L' 값과 'a' 값은 60% 숙도의 딸기에서 급격한 변화를 보였다. 무게 손실률은 80% 숙도, $0^{\circ}C$ 예냉 후, 광을 조사하지 않은 처리구에서 가장 급격히 떨어졌고, 잿빛곰팡이 발생률은 60% 숙도의 $4^{\circ}C$ 예냉, 광을 조사한 처리구에서 가장 높게 나타났다. 따라서 딸기의 신선도를 장기간 유지하기 위해서는 수확시 숙도가 낮은 딸기를 수확하여 $0^{\circ}C$에 예냉 후광을 조사하지 않는 것이 효과적인 것으로 판단된다.