• 한국식품영양과학회지
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• 제41권4호
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• pp.450-455
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• 2012

보이즌베리를 기능성식품 소재 및 가공품으로 개발하기 위한 기초자료를 제공하기 위하여 화학성분 및 항산화활성을 조사하였다. 보이즌베리 착즙액의 pH는 3.62, 가용성고형분은 $13.43^{\circ}Brix$ 및 총산도는 1.15%였으며, L, a, b값은 각각 20.14, 13.19 및 3.20이었다. 일반성분은 수분 79.52%, 조단백 1.08%, 조지방 0.73%, 조섬유 2.51%, 조회분 0.62% 및 가용성 무질소물 15.54%였다. 주요 무기성분은 K, P 및 Ca으로 그 함량이 각각 219.30 mg/100 g, 46.25 mg/100 g 및 39.60 mg/100 g이었다. 가장 많이 함유되어 있는 아미노산은 alanine(75.22 mg/100 g)이었고, 가장 적게 함유되어 있는 아미노산으로는 cystine(2.83 mg/100 g)이었다. 보이즌베리에 함유되어 있는 유리당으로는 glucose(6.91%) 및 fructose(5.88%)였으며, 비타민 C 함량과 총 페놀 함량은 각각 79.52 mg/100 g 및 39.20 mg/GAE g이었다. 보이즌베리 농도 1.25 mg/mL일 때 89.11%의 DPPH radical 소거활성을 보였으며, 환원력은 1.31(흡광도)이었다. 따라서 보이즌베리는 항산화제와 같은 기능성 식품소재로 활용가능성이 매우 높을 것으로 생각된다.

• 한국식품영양과학회지
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• 제44권3호
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• pp.379-385
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• 2015

본 연구에서는 떫은감의 대표적인 품종인 대봉감과 반시의 일반성분 및 영양성분을 분석하고 비교하였으며, 대봉감과 반시의 재배지역별 영양성분의 특성을 살펴보았다. 다양한 영양성분은 품종에 따라 다른 함량을 나타냈는데 대봉감 품종은 불용성 식이섬유, 베타카로틴, 과당, 자당, 만니톨, 칼륨, 사과산, 호박산, 총 페놀화합물이 반시 품종에 비해 유의적으로 높은 함량을 나타냈으며, 반대로 반시 품종은 수분 함량, 조단백질 함량, 비타민 C, 칼슘, 망간, 주석산, 총 플라보노이드 함량이 대봉감 품종에 비해 유의적으로 높은 함량을 보였다. 재배지역에 따라 많은 성분들이 유의적인 차이를 나타냈다. 다른 지역에 비해 비교적 높은 함량을 보이는 영양성분은 A지역은 베타카로틴, 솔비톨, 만니톨, 아연, 총 페놀화합물, B지역은 조지방 함량, 리코펜, 자당, 자일리톨, 사과산, C지역은 호박산, D지역은 수분 함량, 망간, 탄닌, E지역은 조단백질 함량, 나트륨, 망간, 칼슘, 주석산, 총 플라보노이드 함량이었다. 이상의 결과로 떫은감은 품종이나 재배지역에 따라 많은 영양성분의 유의적인 차이를 나타낸다는 것을 확인하였으며 이런 차이는 떫은감을 활용한 가공제품 생산 시 고려되어야 할 사항으로 생각된다.

• Journal of Nutrition and Health
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• 제8권2호
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• pp.19-26
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• 1975

The role of fat is important from nutritional standpoint. The physiological functions of fat are energy yielding as well as the carrier of fat soluble vitamins, with special activities of essential fatty acids. It is fortunate that Korean families prefer to use vegetable oils rather than those from animal origin. But the problems are focused on better qaulity of food oils with attempt to exploit the available resources. This study was undertaken to inevestigate the fatty acid compositions of Korean origin both from conventional and unconventional resources of gas-liquid chromatography. The results obtained are as follows. 1. The total lipid contents of seeds of red pepper, Korean squash, sesame, perilla (var Japonica), and Korean pine nuts and walnuts were 24.3%, 56.6%, 56.4%, 46.9%, 69.8%, and 67.2%, respectively. 2. The saponification numbers of samples ranged from 190 to 200. It showed that the mean molecular weights of fatty acids composing the lipids were very much closed each other. 3. Iodine numbers of varing seed oils ranged from 96.5 of Korean squash seed oil to 124.6 of walnut oil. Oils obtained from squash seeds and sesame seeds showed significantly lower value, while others ranged from 122 to 125. 4. In the fatty acid compositions, squash seed oil was composed mainly of unsaturated fatty acids, 74.9% of which was oleic acid, whereas red pepper seed oil, pine nut oil, and sesame oil contained linoleic acid as a major component showing 64.4%, 56%, 48.8%, and 47.8%, respectively. In perilla seed oil, the amounts of linoleic and linolenic acids were 14.1% and 58%, respectively which meant nearly three-fourths of the total fatty acidsbeing the unsaturated essential fatty acids. This study will encourage the use of these conventional and unconventional vegetable oils which have highr ratios of polyunsaturated to saturated fatty acids.

• Preventive Nutrition and Food Science
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• 제18권3호
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• pp.214-217
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• 2013

Twenty-nine Korean wheat cultivars were analyzed for 8 important minerals (Cu, Fe, Mn, Zn, Ca, K, Mg and P) using Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). A hierarchical cluster analysis (HCA) was applied to classify wheat cultivars, which has a similarity in mineral compositions. The concentration ranges of the micro-minerals Cu, Fe, Mn, and Zn: 0.12~0.71 mg/100 g, 2.89~5.89 mg/100 g, 1.65~4.48 mg/100 g, and 2.58~6.68 mg/100 g, respectively. The content ranges of the macro-minerals Ca, K, Mg and P: 31.3~46.3 mg/100 g, 288.2~383.3 mg/100 g, 113.6~168.6 mg/100 g, and 286.2~416.5 mg/100 g, respectively. The HCA grouped 6 clusters from all wheat samples and a significant variance was observed in the mineral composition of each group. Among the 6 clusters, the second group was high in Fe and Ca, whereas the fourth group had high Cu, Mn and K concentrations; the fifth cluster was high in Zn, Mg and P. The variation in mineral compositions in Korean wheat cultivars can be used in the wheat breeding program to develop a new wheat cultivar with high mineral content, thus to improve the nutritional profile of wheat grains.

• Journal of Animal Science and Technology
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• 제48권4호
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• pp.611-622
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• 2006

우유로 제조한 휘타치즈의 지방산 조성과 숙성중 물리화학적 특성 변화를 연구하였다. 우유 휘타치즈의 성분조성은 지방 22.79%, 단백질 10.57%, 수분 함량 59.87% 이었다. 4℃에서 14 일간 치즈를 숙성한 결과, 젖산균은 Log CFU/g의 값이 10.25에서 7.95로 감소하였으며, 치즈의 pH는 pH 6.22에서 pH 5.55로 변하였다. 치즈의 색상은 L-value의 경우 92.5에서 100.1로 lightness가 증가하였으나, a-value는 2.4에서 4.6으로 red color가 강해졌으며, b-value는 8.3에서 14.1로 gray color가 증가하였다. 조직특성에 있어서 resilience는 저장기간에 따른 점진적 증가 (p<0.01)가 인정되었으며, adhesiveness는 제조 직후 보다 증가(p<0.01)하였으나, 저장기간에 따른 차이는 없었다. Hardness, fracturability, gumminess와 chewiness는 0℃ 저장온도에서 점차로 증가하였으나 통계적인 유의성은 인정되지 않았다. 14일 숙성된 우유 휘타치즈의 관능적 강도는 단맛, 우유취, 짠맛 등에서 대조치즈보다 훨씬 높았으며 (p<0.01) 저작감도 다소 높았다 (p<0.05). 관능적 기호도는 냄새, 색상, 입안느낌, 저작감을 제외한 관능적 특성들이 숙성과 더불어 개선 (p<0.01) 되었다. 휘타치즈의 포화지방산 함량은 52.61% 로서 불포화지방산 함량 (47.39%) 보다 많았으며, 단일불포화지방산 함량이 28.98%로서 이중 또는 다가불포화지방산 함량 (18.41%) 보다 많았다. 영양적으로 중요성이 높은 ω6 및 ω3 지방산의 함량은 각각 9.27% 및 0.55%, CLA 지방산 두 이성체 (c18:2c9t11 및 c18:2t10c12)의 총 함량은 0.11%, arachidonic acid (c20:4) 함량은 0.19%, DHA 지방산 (c22:6n3) 함량은 0.12% 이었다.

• 한국식품영양과학회지
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• 제23권3호
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• pp.409-413
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• 1994

This fundamental study was undertaken to evaluate the nutritional value of Canola rapeseed meal which has been increasingly used as a by-product with the demand for the food oil resource. To compare the nutritive values among rapeseed meal and soybean meal, two experiments were carried out by using rats. One was a digestibility test of rapessed meal and the other was the growth rate of rats for 21 days. The chemical compositions , blucosinolate and amino acids of defatted repeseed meal and defatted soybean meal were analyzed. After one week feeding, nitrogen excretion in rats was measured to study FER, PER , TD , BW , and NPU of the meals. The amount of crude proteins in defatted rapeseed meal and defatted soybean meal were 45.5% and 37.9%. The glucosinolate content of defatted rapeseed meal was 0.04% . The body weight gain of defatted rapeseed meal was not signficantly different from that of defatted soybean meal (p>0.01). After one week feeding, there was no significant differencess in organ weight and serum components between two groups(p>0.01). It was presumed that the rapeseed meal has enough possibility for developing food to use as a protein source like a soybean meal protein. However, more careful experiments are needed to clarify the nutritional value of rapeseed meal of Canola since the lipids composition of blood tended to be different when the rapeseed meal and soybean meal were used.

• 한국축산식품학회지
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• 제35권2호
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• pp.179-188
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• 2015

Though a great amount of chicken by-products are consumed everyday in many countries worldwide, however, no attention has been paid to the investigation of nutritional composition of these by-products. In the present work, the basic information regarding the aspects of nutritional composition of chicken by-products such as; liver, gizzard, heart, lung, crop, small intestines, cecum and duodenum was studied. Our results revealed that the approximate composition range (minimum to maximum) of these by-products was found as such: moisture 76.68-83.23%; fat 0.81-4.53%, protein 10.96-17.70% and calories 983.20-1,426.0 cal/g tissue, in which liver and gizzard had the highest protein content. Liver had higher (p<0.05) vitamin A, B1, B2, B3, B5 and B6 contents in comparison to other remaining byproducts. Total saturated fatty acids (SFA), unsaturated fatty acids (UFA), polyunsaturated fatty acids (PUFA) levels ranged between the by-products from 31.82% to 43.96%, 56.04% to 68.19%, and 18.27% to 32.05%, respectively. Remarkably, all of by-products showed desirable PUFA/SFA ratios. Furthermore, all of chicken by-products, especially liver, contained higher levels of trace elements (e.g., Fe, Mn and Zn) in comparison with those from muscle tissues published in literature. Overall, the study indicated that most of chicken byproducts examined are good sources of essential nutrients and these obtained results will be the useful information to consumers and meat processors.

• 한국축산식품학회지
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• 제22권4호
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• pp.358-362
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• 2002

본 연구는 한우뼈로 만든 탕의 품질에 대한 소비자의 요구에 부응하고 한우뼈의 부가가치 향상 및 소비 확대를 위하여 품종별에 따른 이화학적, 관능적 및 영양적 특성을 구명하여 비교하고자 실시였다. 탁도와 점도에서는 한우가 유의적으로 높았고(P<0.05), 명도에서는 한우가 유의적으로 더 밝았으며(P<0.05), 관능평가에서는 한우가 유의적으로 높은 평가를 받았다(P<0.05). 총질소, 칼슘함량 및 칼로리는 한우와 젖소 용출액이 수입소보다 유의적으로 높았고(P<0.05), 한우와 젖소간에는 유의적인 차이가 있었다. 아미노산 조성에서는 한우의 경우 methonine이 높게 나타났다. 이상의 결과를 종합하여 볼 때 품종간 비교에서는 한우뼈 용출액이 이화학적 특성, 관능특성 및 영양특성에서 우수한 것으로 나타나 우리나라 사람의 기호에 가장 적합한 것으로 나타났다.

• 한국식품영양학회지
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• 제16권1호
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• pp.1-6
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• 2003

시판 국산 및 외국계열사 이유식의 아미노산 및 지방산 조성을 비교, 분석하고, 이들 이유식의 개봉 후 산패 진행 정도를 조사하였다. 시판 이유식의 탄수화물 함량은 61~70%, 단백질은 14~16%, 조지방은 8~15% 조회분 2.5~3.2% 정도로 단백질과 탄수화물의 함량이 전체 77~85%를 차지하였다. 필수아미노산 중에서는 leucine(1460.2~1954.3mg)이 가장 많았으며, 이어서 valine(928.9~1201.7mg/100g), isoleucine(758.1~1033.9mg/100g), lysine(798.7~1081.4mg/100g), phenylalanine(722.8~937.3mg/100g)의 순이었다 국산 H, M, S사 및 외국계열사 이유식의 linoleic acid과 linolenic acid 비율은 각각 15.4 : 1, 13.1 : 1, 39.8 : 1 및 12.2 : 1이었다. 32일간 실온 저장한 국내산 이유식 H, M, S사 및 외국계열사 이유식의 과산화물가는 각각 13.9 meq/kg oil, 1.1 meq/kg oil, 5.4 meq/kg oil 및 14.8 meq/kg oil이었다.

• 한국식품영양학회지
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• 제34권2호
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• pp.165-173
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• 2021

Centella asiatica (CA) has been used as a nutritional plant as well as a traditional herbal medicine around the world. This study, quality component (proximate composition, total polyphenol, and triterpenoid compound), and antioxidant and anti-inflammatory activities of CA dried using various methods were investigated. Proximate compositions of CA with different drying methods included a large amount of carbohydrates, crude protein, crude ash, and crude fiber. Among the drying methods, cold drying provided the highest total polyphenol content and antioxidant activity, while hot-air drying at 75℃ provided the lowest total polyphenol content and antioxidant activity. In addition, when the major triterpenoid compounds of CA were analyzed, the highest content of asiaticoside of triterpenoid glycoside was obtained with all drying methods. With respect to the total triterpenoid, the highest content was obtained with cold drying (68.8 mg/g) whereas natural drying (31.4 mg/g) provided the lowest content. In anti-inflammatory activity of LPS-stimulated RAW 264.7 cells, EtOH extract of cold drying showed a significantly higher inhibitory activity in comparison to the other drying methods. In conclusion, it is considered that the cold drying method is suitable for industrial preparation of functional materials with high physiological ingredients, and antioxidant and anti-inflammatory activities from CA.