• 제목/요약/키워드: Frying condition

검색결과 32건 처리시간 0.024초

개별 인지질 성분의 처리가 대두유의 저장 및 튀김안정성에 미치는 영향 (Effect of Individual Phospholipid Components Treating on Storaging and Frying Stability in Soybean Oil)

  • 구본순;김종승
    • 한국식생활문화학회지
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    • 제20권4호
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    • pp.451-458
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    • 2005
  • 대두유에 혼합 토코페롤과 개별 인지질 성분으로 phosphatidyl choline(PC), phosphatidyl ethanolamine (PE), phosphatidyl inpsitol(PI), phosphatidyl serine(PS), phosphatidic acid(PA) 및 phosphatidyl glycerol(PG)를 각각 0.03%, 0.05%(w/w) 처리하여 이들 성분이 $50^{\circ}C$의 항온저장 조건에서 대두유의 산가(AV), 과산화물가(POV) 및 OSI에 미치는 영향을 측정하였다. 또한, 대두유의 가열안정성에 미치는 영향을 측정하기 위하여 $180^{\circ}C$에서 20시간 동안 가열처리하며 5시간 단위로 시료유를 채취하여 처리시간에 따른 발연점(SP) 변화를 측정하였다. 항온저장에 따른 AV변화에서는 그 항산화 효과가 $PA>PC>PI{\geq}PG>PS{\geq}PE$의 순서였으며, POV상승 억제 효과는 PA>PG>PC>PS>PE>PI의 순서였고, OSI 하락 억제효과는 PI>PC>PA>PG>PS>PE의 순서로 나타났다. 이와 같이 동일한 대두유에 대하여도 그 처리효과는 각 측정항목에 따라 서로 다르게 나타났다. 이러한 항온저장과 달리 $180^{\circ}C$에서 20시간 동안 가열처리하며 5시간 마다 시료유를 채취하여 발연점 하락 억제효과를 측정한 결과는 PA>PC>PG>PE>PI>PS의 순이었다. 상대적으로 혼합 토코페롤 처리군은 산가, 과산화물가 상승 억제 효과가 없을 뿐만 아니라 경우에 따라서는 산화 촉진제로 작용하였으며, OSI에서는 일정 부분의 처리 효과를 인정할 수 있었으나 발연점에서는 무처리군 보다도 오히려 그 하락이 심하여 특히 대두유를 튀김유로 사용할 경우에는 혼합 토코페롤의 처리가 바람직하지 못한 것을 알 수 있었다.

연사의 조리 과학적 연구 (A Study on the Processing Conditions of Younsa)

  • 김종한;김태홍
    • 한국식품조리과학회지
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    • 제2권1호
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    • pp.59-64
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    • 1986
  • This study was designed to revive the disappeared Younsa and to investigate the optimum processing condition and characteristics of Younsa nade of the glutinous rice powder. Agitating time of base mixture, thickness of Younsa base, and frying time were examined as the influencing factors in Younsa processings. The textural parameters of Younsa were determined by sensory cvaluation and hardness of Younsa was measured by Rheometer. The results were found as follows; 1. In the sensory evaluation, 1) The Younsa base agitated for 10 minutes by agitating machine was favorable. It, however, did not showed any significant difference among products prepared under varying agitaing time-10 minutes, 20 minutes, and 30 minutes. (p<0.05) 2) The thinnest Younsa base (5 cm$\times$4cm, 1.1-1.5g) showed the most favorable quality and the second quality went to 5cm$\times$4cm, 1.6-2.0g, the third 5cm$\times$4cm, 2.1-2.5g, the fourth 5 cm$\times$4 cm, 2.6-3.0g. (p<0.05) 3) In examination of varying frying time, the optimal time for frying Younsa was 12 minutes was 12 minutes in $150 ^{\circ}C$. However, the quality was found no significant difference between 12 minutes's fried Younsa and 14 minutes's. (p<0.05). 2. The hardness of the most favorable Younsa, agitated for 10 minutes, the thinnest (5 cm$\times$4 cm, 1.1-1.5g), ana fried for 12 minutes in $150^{\circ}C$ was 0.59-0.73 kg/wt measured by Rheometer. The thickest Younsa base (5 cm$\times$4 cm, 2.6-3.0g) is the hardest (1.26 kg/wt). The most optimal conditions in this experiment were found the same ones which was written in historical literature.

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팜(PALM) 기름 안정성 향상을 위한 항산화제 적정첨가조건 조사 (Studies on the Find out of Optimum Condition with Treated Antioxidants for the Stability of PALM Oil after Frying)

  • 이형재;이성갑
    • 기술사
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    • 제31권5호
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    • pp.110-120
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    • 1998
  • The effect of heat treatment and the order of antioxidants treatment toward the thermally oxidized palm oil which has been stored at 60 $^{\circ}C$ was studied. The summerized results of this study are as follows; 1. In the accelerated autoxidation condition, tocopherol showed no distinct effect on the changes of peroxide of value between added tocopherol samples pre-and post treatment by heating. But, rosemary extract showed opposite result. It was supposed that rosemary extract had lower thermostability then tocopherol, because rosemary extract lost it's antioxidative activity during heating process. 2. The changes of acid value and anisidine value were more affected by heat treatment than the order of antioxidant treatment. 3. The oxidative stability measured by OSI showed same tendency as peroxide value. That is, the antioxidative activity of tocopherol in palm oil was more dependent on addition of antioxidants than heat treatment, but the rosemary extract had opposite character for antioxidative action in palm oil.

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혼합 유채유로 제조한 라면의 저장안정성 (Storange Stability of Instant Ramyon Manufactured with Blended Rapeseed Oil)

  • 장영상;양주홍;신효선
    • 한국응용과학기술학회지
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    • 제4권2호
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    • pp.15-18
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    • 1987
  • The storage stability of Instant Ramyon by industrially prepared with palm, beef tallow and blended rapeseed oils for frying oil was studied. The products was stored under fluorescent light at $60^{\circ}C$ with illumination of 9,000 lux. Changes of peroxide value, total carbonyl value, and absorbance at 232 nm of lipids extracted from Ramyon were investigated during storage. The storage stability of Ramyon prepared with oils containing TBHQ had better than that prepared with a mixture of BHA and BHT. The Ramyon prepared with 4 part of rapeseed oil to 6 part of tallow containing 0.02% BHA/BHT showed higher storage stability than that prepared with palm oil alone but showed lower stability than that prepared with tallow alone both under the same condition of antioxidant treatment.

튀김 기름의 저장 기간에 따른 향신료 및 허브류 첨가에 의한 항산화 효과 (Effect of Spices and Herbs on the Oxidation of the Heated Oil according to Storage Period)

  • 최은미;윤혜경;윤기주;구성자
    • 동아시아식생활학회지
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    • 제10권4호
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    • pp.274-280
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    • 2000
  • The effect of heated oil on human nutrition has recently become of great interest to nutritionists and food chemists. However, the detrimental effect of heated oil has been hardly studied extensively and many problems have still remained unsolved. This study was carried out to investigate the storage stability of the heated oils at room temperature (25$\pm$5$^{\circ}C$), with the variation in storage conditions (addition of spices and herbs) for 7 weeks period. The rancidity of the oils according to storage time and condition was measured and compared with TBA, ferric thiocyanate, and DPPH method. For fresh oil, when stored for 7 weeks at room temperature, her was no significant change in the degree of oxidation. But for the heated oil with frying materials, the degree of oxidation significantly increased at 5 weeks(p<0.05). When stored with spices and herbs, the degree of oxidation significantly decreased with storage period(p<0.05). Antioxidative activity of herbs, especially sage group was higher than that of any other group.

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나노다이아몬드가 첨가된 프라이팬 불소수지코팅의 Tribological 특성 연구 (A Study on the Tribological Characteristics of a Frying Pan Coated with PTFE and Nano-Diamond)

  • 이진호;김현수;윤한기;김태규
    • 한국해양공학회지
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    • 제23권6호
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    • pp.99-104
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    • 2009
  • PTFE has good mechanical and chemical stability at a wide range of temperatures and demonstrates a low friction coefficient value. PTFE is being used for self-lubricating parts in industry. But it shows a high wear rate. Thus, PTFE and nano-diamond powder were mixed into a composite and the wear properties of a PTFE coating layer on Al6061 was investigated. A ball-on-disk type of wear tester was used under a dry condition and different temperatures of oil. After the wear test, the wear track wasexamined by optical microscope. The PTFE-diamond showed the lowest friction coefficient (0.02) of all the lubricants in the experiments. The friction coefficient was shown to be directly related to the diamond powder in the PTFE coating. Adhesion estimations were performed by a scratch test, which is mainly used for coatings. The critical load between the coating and substrate was defined through analyses of the friction load, normal load curve, and acoustic emissions, along with optical microscope observations. The scratch test results showed that an import item (SWISS) gave the highest critical load values.

길거리 음식에 대한 중${\cdot}$${\cdot}$대학생의 섭취 및 위생상태 인식과 미생물 분석 (A Study on Students' Intake of Street Foods and Their Perception toward Hygiene Status of Street Foods and Microbiological Analysis)

  • 김미정;오세영;윤기선
    • 한국식생활문화학회지
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    • 제22권3호
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    • pp.342-352
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    • 2007
  • We investigated the intake trends of street foods for middle school, high school and colleges students through the survey study. In addition, the factors affecting the students' consumption of street foods and their perception toward hygiene status of street vendor were studied. The levels of total aerobic bacteria, coliform groups and enterobacteriaceae in Kimbab, eomuk, and eomuk-kukmul were counted using 3M petrifilms. More than ninety seven % of the respondents had experienced street foods. All the respondents ate street foods 1 to 5 times a month. Forty percent of the respondent stated that 'good taste' and 'time-saving convenience' were their reason for eating the street foods. Their favorite foods were ddokbokgi and various fried foods. All the students responded that frying oil, drinking water, and soy sauce as well as the street vendors' attire and their cooking tools in street vendor were unsanitary. Forty percent of the respondents ranked frying oil as the most unsanitary substance. Eighty percent of the respondents responded that an enforcement of hygiene should be imposed on the street foods vendor. There were significant differences (p<0.001) among the student's age in the opinion related to the reasons of eating street foods, hygiene enforcement, existence of street foods and interest of hygiene status of street foods. High correlation (p<0.05) between the frequency of street foods and snack intakes was shown, regardless of student's age. The result shows that those who eat snacks more than once a day tend to eat street foods more frequently. Aerobic plate counts in Kimbab in 5 different vendors exceeded 10$^5$/g and contamination levels of enterobacteriaceae or coliform in Kimbab exceeded more than 10$^3$/g, which did not satisfy the microbiological standards. In conclusion, although the respondents thought that the sanitation of street foods was poor, most of them want the street food vendor to be maintained with better hygiene condition. This indicated that the regulation for safe street foods should be enforced and educational information about the preparation and serving for safe street foods should be provided to street food vendor.

남대양산 크릴의 이용에 관한 연구 (STUDIES ON THE UTILIZATION OF ANTARCTIC KRILL 2. Processing of Paste Food, Protein Concentrate, Seasoned Dried Product, Powdered Seasoning, Meat Ball, and Snack)

  • 박영호;이응호;이강호;변재형;김세권;김동수
    • 한국수산과학회지
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    • 제13권2호
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    • pp.65-80
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    • 1980
  • 크릴을 원료로 하여 품에 대한 화학적 및 관능적 평가를 포함하는 일련의 실험을 하여 얻은 결과를 요약하면 다음과 같다. 1. krill paste의 제조에 있어서 krill juice는 $71\%$, krill scrap는 $29\%$의 수율을 나타내었으며, krill juice에서 분리한 krill paste는 $53\%$, krill broth는 $47\%$의 수율을 나타내었다. Krill paste의 아미노산 조성은 proline, glutamic acid, aspartic acid, lysine 및 leucine의 함량이 많았고, histidine, methionine, tyrosine, serine 및 threonine의 함량이 적었으며 필수아미노산에 있어서는 leucine 및 lysine의 함량이 높았고 methionine의 함량이 낮았다. 2. 크릴분말단백질의 제조에 있어 최적가공조건은 원료에 대하여 10배량의 $90\%$ isopropyl alcohol나 ethyl alcohol을 가하여 $80\%$에서 5분간 추출하는 조작을 5회 반복하는 것이었다. 추출용제로서는 ethyl alcohol 보다 isopropyl alcohol이 양호하였으며, 크릴분말단백질의 수율은 생동결크릴의 경우는 isopropyl alcohol 추출때가 $10.2\%$ ethyl alcohol 추출때는 $8.8\%$였고, 자숙동결크릴의 경우는 각각 $13.0\%$$11.8\%$였다. 크릴분말단백질의 아미노산조성은 생육질부의 아미노산조성과 거의 비슷하였다. 한편 크릴분말단백질을 첨가한 국수를 제조하여 관능검사를 한 결과, 원료 밀가루에 대하여 $3\%$까지 첨가 한 것이 국수 품질에 큰 영향을 주지않고 단백질을 강화할 수 있다고 판정하였다. 3. 크릴조미조림품의 품질은 전반적으로 볼 때 열풍건조크릴을 원료로 한 것이 가장 양호하였고, 다음이 일건크릴을 원료로 했을 때이며, 자숙냉결크릴을 원료로 한 것이 가장 못 하였다. 4. 크릴의 건조분말에 볶은참깨가루, 소금, 분말우육엑스, monosodium glutamate, 고추가루 및 후추가루를 각종 비율로 배합하여 분말조미료를 만들 었을 때의 품질은 색택에 있어서는 열풍건조크릴을 사용한 것이 양호하였고, 냄새는 일건크릴을 원료로 한 것이 양호하였으며, 열탕에 녹였을 때의 풍미는 sample B(크릴함량 $77\%$)가 가장 적당하였다. 5. 크릴 및 조기를 각종 비율로 배합하고 여기에 일정량의 밀가루, monosodium glutamate 및 소금을 첨가하여 krill meat ball을 만들어 그 색택, 맛 냄새, texture 및 젤리강도 등에 대하여 관능검사를한 결과, 크릴의 첨가량이 $25\%$까지의 제품이 양호하였으며, 생동결 및 자숙동결크릴을 원료로 했을 때의 품질차는 인정할 수 없었다. 6. 크릴, $\alpha$-전분, 고구마전분, 설탕, 소금, monosodium glutamate, glycine, 주석산칼리, 중탄산암모늄 및 중탄산소오다를 각종 비율로 배합하여 크릴${\cdot}$스낵${\cdot}$과자를 만들어 품질을 비교 검토한 결과 sample B(크림함량 $7.1\%$) 및 sample C(크릴함량 $10.8\%$)서 가장 양호하였다. 크릴${\cdot}$스낵${\cdot}$과자의 제조에 있어서 각종 전분의 가공적성을 시험한 결과 고구마전분이 가장 양호하였고 다음이 옥수수전분, 갈분의 순이었으며, 밀가루가 가장 못 하였다. 튀김방법은 소금튀김에 비하여 기름튀김이 좋은 결과를 나타내있고, 튀김온도는 $210\~215^{\circ}C$가 적당하였다.

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반응표면분석에 의한 천마의 건조조건 모니터링 (Monitoring of Drying Conditions for Gastrodia elata Blume by Response Surface Methodology)

  • 김성호;김인호;강복희;이상한;권택규;이진만
    • 한국식품저장유통학회지
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    • 제13권6호
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    • pp.740-748
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    • 2006
  • 천마를 채취한 그대로 이용하는 데에는 생체 보존에 따른 불편, 독성 그리고 자극성 등의 부작용으로 간단한 전처리 과정이 필요하다. 따라서 본 연구에서는 천마를 이용한 가공제품의 개발을 위한 전처리 과정 중 건조 조건별로 천마의 이화학적 특성을 반응표면 분석법으로 모니터링하여 최적 건조조건을 설정하였다. 천마 건조물의 수분활성도는 건조온도 $79.56^{\circ}C$, 건조시간 7.17 hr에서 가장 높은 간을 나타내었고, 총 페놀성 화합물 함량은 $79.64^{\circ}C$, 8.74hr에서, 전자공여능은 $79.79^{\circ}C$, 8.57 hr에서 최대값을 나타내었으며, 아질산염 소거능(pH 1.2)은 건조온도 $79.99^{\circ}C$, 건조시간 8.07hr에서 각각 최고의 이화학적 특성을 나타내는 것으로 예측되었다. 천마 건조물의 이화학적 특성을 고려한 최적 건조조건 범위는 건조온도 $75{\sim}80^{\circ}C$와 건조시간 $8{\sim}9 hr$으로 각각 나타났다.

마늘 장기(長期) 저장(貯藏) 방법(方法) -제일보(第-報). 예건처리방법(豫乾處理方法)과 저장조건(貯藏條件)이 품질변화(品質變化)에 미치는 영향(影響)- (Study on the Long Term Storage of Garlic Bulbs -Part 1. The Effects of Post-harvest Drying Method and Storage Condition on the Quality-)

  • 박무현;고하영;신동화;서기봉
    • Applied Biological Chemistry
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    • 제24권4호
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    • pp.218-223
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    • 1981
  • 한국산 6쪽마늘의 장기 저장에서 수확후(收穫後) 예건방법과, 저장고내온습도(貯藏庫內溫濕度) 조건이 품질(品質)에 미치는 영향에 대하여 1980년(年) 7월(月)부터 1981년(年) 4월까지 조사시험 하였던바, 수확후 열풍예건한 마늘은 자연 예건된 것에 비하여 상온저장 조건에서 중량감소와 부패발생에서 각각 25.4%와 13.5% 정도 억제 효과가 있었으며, 저온저장 조건에서는 14.2%와 7.5% 정도 경감되었다. 그리고, 저온저장 $(0^{\circ}C)$ 하므로 상온저장한 것에 비하여 얼풍예건 처리한 마늘의 경우 중량감소와 부피발생이 각각 14.0%와 9.9% 정도 줄었으며, 자연예건한 마늘에서는 각각 20.0%와 22.4% 경감되는 효과를 보였다. 또한, 열풍예건처리와 저온저장조건은 저장중 마늘의 발아 및 호흡억제와 allin성분의 보존에도 좋은 효과가 있었다.

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