• Food Science and Biotechnology
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• 제16권1호
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• pp.116-122
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• 2007

Four compounds with antioxidant activity were isolated from the MeOH extract of peanut shells (pod) and identified as 5,7-dihydroxychromone (1), eriodictyol (2), 3',4',7-trihydroxyflavanone (3), and luteolin (4) by electron impact-mass spectrometry (EI-MS) and nuclear magnetic resonance (NMR) analyses. The relationship between antioxidant activity and chemical structure of the isolated compounds with their analogues [(-)-epicatechin, quercetin, taxifolin] was examined by measuring 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity and using the 2-deoxy-D-ribose degradation system. The order of antioxidant activity on the basis of DPPH radical-scavenging was quercetin = (-)-epicatechin (6.0 molecules) > taxifolin (4,5 molecules) > 4 (luteolin; 4.0 molecules) > 2 (eriodictyol; 2.5 molecules) > 3 (3',4',7-trihydroxy-flavanone; 2.0 molecules) > 1 (5,7-dihydroxychromone; 0.5 molecules). On the other hand, using the 2-deoxy-D-ribose degradation system, the order of antioxidant activity was quercetin > 4 >> (-)-epicatechin ${\geq}\;2\;{\geq}$ taxifolin > 3 > 1. These compounds from peanut shells may provide defensive measures against oxidative stress and insects in the soil.

• Preventive Nutrition and Food Science
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• 제4권4호
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• pp.276-282
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• 1999

Ionizing radiation is considered to be an efficient technology to improve food safety and to extend food shelf-life in the food industry, and it has been used in food processing with a number of attributes. Food labeling should be established to enable the consumer to choose food freely, based on label information. A variety of methodologies to determine the physical, chemical, microbiological, and biological changes due to irradiation has been investigated in order to discriminate the irradiated and unirradiated food products for the consumer's free choice in food selection. However, no satisfactory method has been developed so far. In this review, various approaches based on DNA, immunochemical, and biological methods are addressed.

• 한국식품영양학회지
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• 제11권2호
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• pp.200-210
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• 1998

부산지역의 외식실태 중 음식점과 음식의 선호도를 알아보기 위하여 본교 식품영양과 재학생의 친지 중에서 부산시내에 거주하거나 직장을 가진 초등학교 4학년 이상의 남녀 564명을 대상으로 설문지를 이용하여 조사한 결과는 다음과 같다. 조사대상은 성별과 연령별로 구분하였으며, 연령은 의식수준과 시대적 동질성 등을 감안하여 대학생 이하의 응답자는 학교별로 구분하고 성인들은 10살 단위로 구분하여 조사한 다음 생활환경과 소득수준에 따라 초등생, 중학생 및 고교생을 묶어서 학생층으로, 대학생과 20대를 묶어서 청년층으로, 30대 이상의 장년층을 묶어서 분석에 이용하였으며, 필요한 경우에는 학생층과 청년층을 묶어서 젊은이로 하였다. 설문내용은 음식점을 선호하거나 싫어하는 이유와 일반인이 자주 먹는 메뉴 중 69종을 선택하여 먹어보지 않은 음식, 좋아하는 음식 및 싫어하는 음식의 종류와 그에 대한 이유 등을 알아봤으며, 각 설문에 대한 선택은 문항에 따라 2~3개씩 선택하게 하여 응답자의 부담을 덜어주었다. 1. 음식점을 좋아하는 주요한 요인은 "맛이 있어서", "분위기가 좋아서", "가격이 싸서" 순이였고 싫어하는 이유는 "맛이 없어서", "비위생적이어서", "종업원이 불친절해서" 순이었다. 2. 응답자의 30%가 먹어보지 않은 메뉴의 종류는 남자가 6종인데 비해 여자는 9종이었으며, 초등학생 15종, 중학생과 고교생이 13종(이상 학생층), 대학생이 6종, 20대가 4종(이상 청년층), 30대가 2종, 그리고 40대와 50대 이상(이상 장년층)이 3종으로 여자와 나이가 어릴수록 그 종류가 많았다. 3. 부산시민이 좋아하는 메뉴는 전체적으로 "생선회", "피자", "불고기" 순이었으며, 남자와 장년층은 전통음식을 여자와 젊은이(학생층과 청년층)는 패스트푸드를 더 좋아하는 것으로 나타났다. 4. 전체적으로 싫어하는 메뉴는 "보신탕", "곱창전골", "꼬리곰탕" 순이었으며, 남자와 장년층은 패스트푸드를 여자와 젊은이들은 보신식품을 더 싫어하는 것으로 나타났다. 5. 음식을 선호하는 주요한 이유는 "맛이 있어서", "그냥 좋아서", "영양이 풍부해서" 순이었으며, 남자와 장년층은 "영양이 풍부해서", 여자와 젊은이들에게서는 "외래음식이어서" 비율이 높았다. 6. 음식을 싫어하는 주요한 이유는 "맛이 없어서", "혐오식품이어서", "체질상 거부하여서", 순이었으며, 남자와 장년층은 "외래음식이어서", 여자와 젊은층은 "혐오식품이어서" 비율이 높았다. 이상과 같은 음식점과 음식에 대한 선호도는 연령과 성별에 따라 차이가 있는 것을 볼 수 있었다.율이 높았다. 6. 음식을 싫어하는 주요한 이유는 "맛이 없어서", "혐오식품이어서", "체질상 거부하여서", 순이었으며, 남자와 장년층은 "외래음식이어서", 여자와 젊은층은 "혐오식품이어서" 비율이 높았다. 이상과 같은 음식점과 음식에 대한 선호도는 연령과 성별에 따라 차이가 있는 것을 볼 수 있었다. 같은 음식점과 음식에 대한 선호도는 연령과 성별에 따라 차이가 있는 것을 볼 수 있었다.

• Preventive Nutrition and Food Science
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• 제14권4호
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• pp.349-353
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• 2009

The effects of packaging materials on preserving the functional component of pine bud beverage stored under UV (ultraviolet) light exposure conditions were studied. The order of UV light blocking properties of the selected packages was: opaque can> opaque PET (polyethylene terepthalate) with green lamination=transparent PET with 10% PEN (polyethylene naphthalate) blending> transparent PET, and did not depend on film thickness in specified range. At 20${^{\circ}C}$, the order of preserving degree of original color and endobornyl acetate, which is quality index of pine bud beverage, was the same as above. Exposure to UV light can cause of deterioration of functional food components, but green color lamination and blending of PEN materials with transparent PET help to preserve the UV sensitive pine bud beverage components. However, the treated PET bottles have poorer preservation capabilities than the opaque cans. Transparent PET with PEN blending, in particular, will be very useful packaging material for colorful functional beverage preservation by helping to protect the ingredients while attracting consumer attention.

• 한국해양바이오학회지
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• 제2권1호
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• pp.55-59
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• 2007

The oil and concentrated protein powder from squid viscera was extracted and recovered by a semi-batch supercritical carbon dioxide ($SCO_2$) extraction system and the degree of oxidation in the extracted oil was measured in order to compare with extracted oils using organic solvents. The degree of storage in treated squid viscera by $SCO_2$ extraction was measured in order to compare with untreated squid viscera. As results obtained, it was found that the auto-oxidation of the oils using $SCO_2$ extraction occurred very slowly compared to the oils by organic solvent extraction. And the treated squid viscera by $SCO_2$ extraction was reached the point of initial rottenness slowly than untreated squid viscera.

• 한국식품조리과학회지
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• 제8권3호
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• pp.255-263
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• 1992

Pasting characteristics and amylose-surfactant complex forming ability of sweet potato starch were investigated after defatting and the addition of surfactants, such as SSL (sodium steamyl-2-lactylate) Dimodan (mono/di glyceride) and SE (sucrose ester) with different concentrations. All starch granules were smooth and round, there were no damages to starch granules after defatting and surfactant addition. amylose content of surfactant added stach decreased and me order of decrease was SSL, SE and Dimodan. The cornplex forming ability of SE added starch increased according to increasing HLB value. As surfactants concentration increased, amylose complex formig ability increased. In case of gelatinization patterns by amylograph, the initial pasting temperature of surfactant added starches was higher than mat of untreated or defatted starches, but viscosity at each temperature were all decreased. Soluble carbohydrate and leached amylose of starches increased at increasing temperature, those of surfactant added starches decreased at each temperature in the order of SSL, SE and Dimodan.

• 한국포장학회지
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• 제8권2호
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• pp.12-17
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• 2002

Since 1985, the growth rate of population of the world is over that of the food production. The cultivated land and the grain production rate are decreasing every year. Therefore, the most serious crisis which we will meet in the 21st century will be food shortage. In order to solve this desperate shortage of food, besides trying to produce more food, the technology of post-harvest, food processing, and food packaging should be developed to reduce and make the best use of the amount of the already produced agricultural products for which a lots of cost and labors were invested, but are being wasted during food distribution channel due to their undeveloped technology.

• 한국식품영양학회지
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• 제25권4호
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• pp.1023-1026
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• 2012

The objective of this study is to propose activation ways through an analysis on processing actual conditions and quality of farm food. For the analysis we have surveyed the actual condition of farms and conducted sensory test on farm food. Difficulties of farm business are in order to 'preparation of papers', 'facility standard', 'improvement of quality' and 'labeling'. Overall, products from major food companies achieved better results than farm foods in all sensory test. It is necessary to educate the 'Food Sanitation Act' and prepare a manual for the development of farm food.

• 한국식품위생안전성학회지
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• 제19권2호
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• pp.55-59
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• 2004

This study was performed to investigate 172 samples of fried food in fast food store. The free fatty acid value of 22 samples exceeded standard of fried-food. These samples were 10 fried chickens, 6 fried potatoes and 5 fried onions. Fatty acid composition differed from each company. The correlation between free fatty acid value and double bond index was very low. New standard of fried food in fast food store is needed for thorough hygiene management, because of being not existed standard. The fried potato containing many carbohydrate and fat appeared higher calory than fried chicken containing many protein. The fried food had high fat comparatively, so that attention in regard to excess intake is demanded. The trace materials were included Mg, Ca, Mn, Fe, Zn, Cu and Cr in order of quantity, and the harmful heavy metals-Pb, Hg and Cd- were included small quantity.

• 한국식품조리과학회지
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• 제30권3호
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• pp.360-367
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• 2014

This study analyzed the Importance-Performance Analysis of selective attributes of Ethnic Food Restaurant. A total of 369 questionnaires were analyzed. Five factors were obtained from factor analysis of Importance variance of selective attributes of Ethnic food restaurant: Factor 1 "Quality", Factor 2 "Service", Factor 3 "Physical environment", Factor 4 "Uniqueness", Factor 5 "Health". Also, "Quality", "Physical environment", "Uniqueness" factors influenced overall satisfaction. In addition, according to the IPA results, selective attributes with low satisfaction and high importance in the second quadrant were 'Sanitation that comfort hospitality', 'Level of service' and 'Price'. These results suggest that when customers select Ethnic food restaurant, they consider 'food price' and 'food quality'. Therefore, manager of ethnic food restaurant should take these improvement factors into consideration in order to meet consumer's expectations.