• 한국식품영양과학회지
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• 제27권3호
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• pp.399-405
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• 1998

This study was carried out to investigate the effects of herb extracts on lipid oxidation and free radical reaction in iron sources reacted with active oxygen species. The catalytic effects of active oxygen on lipid oxidation in oil emulsion tended to show more active in the order of OH, H2O2 and KO2. Herb extracts tended to show a little catalytic effect and active oxygen scavenging ability of herb extracts didn't show. But herb extracts played role as a strong chelating agents to bind iron if Fe2+ ion exist in oil emulsion. The contents of Fe2+ ion and total iron in Salvia miltiorrhiza Bge. and Angelica gigas Nakai were higher than those of Prunus persica Stockes and pinus strobus. The content of asocrbic acid in Pinus strobus showed the highest (26.97ppm) among several herb extracts. Electron donating abilities of Pinus strobus and Salvia miltiorrhiza Bge. were 79.54% and 77.11%, respectively, which were higher contents than those of Prunus persical Stokes and Angelica gigas Nakai. The SOD-like activity of Prunus persca Stokes showed 0.16 optical density (O.D), which means the most strong antioxidant activity among other herb extracts. The nitrite scavening effects tended to be different depending on pH. Pinus strobus and Angelica gigas Nakai showed 99.8% and 98.6% nitrite scavening effects at pH 1.2. And the effects were decreased as pH was increased. Especially, they didn't show the nitrite scavenging effect in pH 6.0. In conculsin, the Prinus strobus extract among herb extracts were the most effective antioxidant by evaluating several functional tests.

• KSBB Journal
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• 제21권6호
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• pp.414-417
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• 2006

기능성 천연물 생물소재 개발을 위한 목적으로 비수리(L. cuneata)의 미네랄, 아미노산 및 비타민 함량을 조사한 결과 다음과 같다. 무기성분은 Ca, K, Mg, P, Na, Fe,,Mn, Zn, Cu이 주성분을 이루었으며 Ca이 737.03 mg%로 가장 많이 함유되어 있었다. 유리아미노산의 총 함량은 50.24 mg%이며 이 중 proline이 33.77 mg%로 전체 유리아미노산의 67.2%를 차지하였고 필수아미노산은 7.49 mg%이었다. 구성아미노산은 2,817 mg% 분리 동정되었으며 필수아미노산 1,084 % 중 lysine의 함량이 가장 높았고 leucine, valine, threonine, isoleucine, phenylalanine의 순으로 많이 함유되었다. 또한 비수리에서 노화방지의 역할을 하는 vitamin E가 33.03 mg%인 높은 함량을 나타났다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 1999년도 Proceedings of International Symposium on Remote Sensing
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• pp.396-402
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• 1999

The aim of this study is to assess the OSMI (Ocean Scanning Multi-spectral Imager), whose central bands are 443nm, 490nm, 510nm, 555nm, 670nm, and 865nm, for agricultural applications. Radiance measurements, used to determine per cent reflectance of canopies and soils, were acquired with spectro-radiometers (Li-1800;330~1,100nm, GER-SFOV;350 ~2,500nm, and MSR-7000; 300~2,500nm) in situ for crops and indoors for soils. OSMI equivalent bands and their ratio values were prepared(20nm interval for bands 1~5; 4nm interval for band 6) by averaging spectral reflectance values to the real OSMI bands and analyzed as to crop growth parameters, leaf area index (LAI), total dry matter, and growth index in crops and physiochemical properties in soils. Spectral variations for each growth stage in rice and for crop discrimination in upland crops were significant statistically. In soils, clay and water content, CEC (Cation Exchange Capacity), free iron oxide, and some cation content were correlated with the OSMI equivalent bands. The result of this study shows OSMI wave bands would be promising for agricultural application in terms of spectral information and resolution.

• 대한원격탐사학회지
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• 제15권4호
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• pp.307-319
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• 1999

The aim of this study is to assess the OSMI (Ocean Scanning Multi-spectral Imager), whose central bands are 443nm, 490nm, 510nm, 555nm, 670nm, and 865nm, for agricultural applications. Radiance measurements, used to determine per cent reflectance of canopies and soils, were acquired with spectro-radiometers (Li-1800;330∼1,100nm, GER-SFOV;350∼2,500nm, and MSR-7000; 300∼2,500nm) in situ for crops and indoors for soils. OSMI equivalent bands and their ratio values were prepared(20nm interval for bands 1∼5; 40nm interval for band 6) by averaging spectral reflectance values to the real OSMI bands and analyzed as to crop growth parameters, leaf area index (LAI), total dry matter, and growth index in crops and physiochemical properties in soils. Spectral variations for each growth stage in rice and for crop discrimination in upland crops were significant statistically. In soils, clay and water content, CEC (Cation Exchange Capacity), free iron oxide, and some cation content were correlated with the OSMI equivalent bands. The result of this study shows OSMI wave bands would be promising for agricultural application in terms of spectral information and resolution.

• 한국식품영양학회지
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• 제21권3호
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• pp.336-343
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• 2008

This study was conducted to investigate the effects of caffeine on lipid and mineral content in the serum of rats given a caffeine free diet(FC), a low caffeine diet(LC), a medium caffeine diet(MC), a high caffeine diet(HC) or a super-high caffeine diet(SHC) for 5 weeks. Thirty male Sprague-Dawley rats(body weight, $110{\pm}0.3$ g) were blocked into 5 groups and fed diets with or without pure caffeine. Caffeine intake models showed a lower mean-weight gain, food intake and food efficiency in the high caffeine diet groups(MC, HC and SHC groups) than the groups receiving a caffeine free or low caffeine diet(FC and LC groups). Serum total lipid, total cholesterol and LDL-cholesterol levels decreased, but the serum HDL-cholesterol level increased according to the increase in caffeine intake. Serum total lipid, HDL-cholesterol and serum triglyceride were significantly lower in the HC and SHC groups than the FC group. All of the serum minerals decreased as caffeine intake increased. Serum iron, calcium, magnesium and phosphorus significantly decreased in the HC and SHC groups compared to the FC group. Caffeine intake was associated with less weight gain and reduced serum total cholesterol, triglyceride and total lipid. The results suggest that rats fed high amounts of caffeine may be susceptible to osteoporosis due to their low levels of calcium, magnesium and phosphorus.

• Asian-Australasian Journal of Animal Sciences
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• 제15권1호
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• pp.26-33
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• 2002

In order to assess the effect of feeding raw or processed cotton (Gossypium) seed meal (CSM) on meat and wool production, 30 male crossbred lambs (3-4 months) of uniform body weight were assigned equally to five dietary treatments in a completely randomised design. The CSM was processed by three different methods i.e., cooking the meal at $100^{\circ}C$ for 45 minutes, treatment with 1% calcium hydroxide ($Ca(OH)_2$) for 24 h and iron treatment in the ratio of 1 part free gossypol (FG) to 0.3 parts of iron for 30 minutes. The lambs were fed isonitrogenous and isocaloric concentrate mixtures, containing 30% deoiled peanut meal (reference diet) and 40% of either raw, cooked, $Ca(OH)_2$ or iron treated CSM for 180 days. The raw and variously processed CSM replaced about 50% nitrogen of reference concentrate mixture. The concentrate mixtures were fed to meet 80% of the protein requirements (NRC, 1985) along with ad libitum chopped maize (Zea mays) hay. The slaughter weight, empty body weight and carcass weight was higher ($p{\leq}0.01$) in lambs fed cooked CSM incorporated diets, compared to diets containing deoiled peanut meal (DPNM). These parameters were not influenced by feeding diets containing either raw, $Ca(OH)_2$ or iron treated CSM in comparison DPNM diets. The carcass length, loin eye area and edible and inedible portion of carcass and the meat: bone ratio in whole carcass were also not affected by feeding CSM based diets. Among various primal cuts, the yield of legs was lower ($p{\leq}0.05$) from raw CSM fed lambs in comparison to DPNM fed lambs. The fat content in the Longissimus dorsi muscle was reduced ($p{\leq}0.05$) in lambs fed processed CSM based diets compared to those fed DPNM diet. Replacing DPNM with either raw or processed CSM based diets did not influence the sensory attributes and overall acceptability of meat. The wool yield was higher ($p{\leq}0.05$) in iron treated CSM fed lambs. The fibre length and fibre diameter were comparable among lambs on various dietary regimes. Among lambs fed variously processed CSM diets, the feed cost per kg of edible meat production was lower ($p{\leq}0.05$) on $Ca(OH)_2$ treated CSM, followed by cooked CSM diet and then on raw CSM based diets compared to DPNM diet. The CSM after 1% $Ca(OH)_2$ treatment or cooking for 45 minutes appears to be a satisfactory protein supplement in lamb diets for meat and wool production to replace at least 50% nitrogen of scarce and costly peanut meal.

• 한국식품영양학회지
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• 제30권5호
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• pp.1025-1034
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• 2017

As the consumption of wheat has increased recently, the number of people who have digestive problems resulting from gluten in wheat has also increased. Teff has an attractive nutritional profile, as it not only gluten-free but also high in dietary fiber, protein, iron, and calcium. Seven samples were prepared for this study. The quality characteristics of gluten-free noodles were evaluated based on pH, salinity, water absorption, turbidity, color, texture properties, tensile strength, and SEM. The pH value was the highest in TF100 with a pH of 6.66 and the lowest in the control with a pH of 6.42. Salinity showed no significant difference among all samples, and it ranged from 0.02~0.04% (p<0.05). Water absorption was the highest in TFX with a value of 66.11%, and the lowest in the control with a value of 44.81%. Turbidity showed no significant difference among all samples, and it ranged from 0.14~0.21 O.D. (p<0.05). While the lightness and yellowness values decreased with an increase in teff flour content, the redness value tended to decrease. The color difference value was the highest in the sample group without gluten. Based on the texture profile analysis, the hardness was highest in the control with a value of 46.74 N and lowest in TF100 with a value of 18.34 N. The springiness showed no significant difference among all samples. The cohesiveness was highest in the control with a value of 0.92 N. The chewiness decreased with an increase in teff flour content. Although the control with gluten had the highest tensile strength at $3.42kg/cm^2$, TFX had considerable tensile strength at $2.30kg/cm^2$. This study demonstrated the processability of gluten-free noodles using teff flour.

• 한국식품저장유통학회지
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• 제23권3호
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• pp.413-421
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• 2016

본 연구는 폐기되는 돈혈을 식품소재로 활용하고자 단백질 가수분해효소 5종을 처리하여 품질특성 변화를 조사하였다. 그 결과 KMFP-15(E)로 가수분해할 때 pH 7.3, 총 고형분 함량 $24.3^{\circ}Brix$ 및 유리아미노산 함량 4,944 mg%로 가장 높은 고형분 함량 및 유리아미노산 함량을 나타내었다. KMFP-15(E) 농도에 따른 영향을 조사한 결과 처리농도가 증가함에 따라 총 고형분 함량 및 유리아미노산이 증가하였으며, 유리아미노산은 KMFP-15(E) 0.2% (w/v)첨가구에서 7,224 mg%로 0.3% (w/v)첨가구와 유의적인 차이를 나타내지 않아 0.2% (w/v)로 설정하였다. KMFP-15(E)의 가수분해 시간에 따라 유리아미노산 함량은 4시간에서 7,404 mg%로 가장 높게 나타났으며, 시간이 경과할수록 감소하는 경향을 보여 최적 가수분해시간은 4시간으로 설정하였다. 상기 설정된 가수분해 조건을 통해 제조된 돈혈 분말(PBHP)에는 조단백질 및 아미노산과 철분, 칼륨, 아연 등 다량의 무기질이 함유되어 있는 것으로 나타났으며 특히, 철분의 함량은 1,983 mg%로 높게 나타나 식품소재로 활용 가능한 것으로 나타났다. 이상의 결과 폐기되는 돈혈의 활용방안으로 다양한 가수분해조건중 효소 KMFP-15(E) 0.2% (w/v)를 첨가하여, 4시간에서 가수분해 하였을 때 전반적 품질 특성이 가장 우수하여 향후 돈혈을 이용해 단백질 보충, 아미노산소재 및 철분강화제 등의 식품 및 의약품 소재로의 고부가가치 창출이 가능할 것으로 판단되었다.

• Applied Biological Chemistry
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• 제24권4호
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• pp.224-229
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• 1981

한약재(韓藥材)로서 널리 이용(利用)되고 있는 자소(紫蘇)(Perilla frutescens Britton var. crispa Decaisne)를 지역별(地域別)(광주(廣州), 대구(大郎), 제주(濟州))로 배양(培養) 하여 얻은 종실(種實)의 일반성분(一般性分), 무기성분(無機成分) 및 지방(脂肪)의 여러가지 특성(特性)을 조사(調査)한 결과(結果)는 다음과 같다. 1. 자소종실(紫蘇種實)의 일반성분(一般成分)은 단백질함량(蛋白質含量)이 15%정도로서 산지별(産地別) 차이가 거의 없었으나 조지방(粗脂肪)은 28(제주(濟州))${\sim}$34%(대구(大邱)), 탄소화물(炭水化物)은 40(대구(犬邱))${\sim}$44%(제주(濟州))로서 산지별(産地別)로 상당한 차이(差異)가 있었다. 2. 무기성분(無機成分)의 함량(含量)은 $K(426{\sim}446mg%)$, $SiO_2(197{\sim}229m%)$, $Ca(124{\sim}136mg%)$가 비교적 많고 P, Mg, Zn, Mn, Fe 등(等)은 $30{\sim}56mg%$로서 서로 비슷한 함량(含量)을 나타내었다. 무기성분(無機成分)중 Fe 및 Mn의 함량(含量) 산지별(産地別)로 다소 차이가 있었으나 다른 무기성분(無機成分)은 산지별(産地別)로 별차이가 없었다. 3. 자소유지(紫蘇油脂)의 염화가는 $194{\sim}199$, 요오드가(價)는 $196{\sim}200$, 산가(酸價)는 $4{\sim}5$로서 산지별(産地別)로는 거의 차이(差異)가 없었으나 다른 식물유(植物油)에 비하여 요오드가(價)가 현저하게 높았다. 4. 자소유지(紫蘇油脂의) 조성(組成)으로서 triglyreride가 전체(全體)의 $92{\sim}95%$, 불염화물이 $1.7{\sim}1.9%$, phospholi-pid가 $1.2{\sim}1.3%$, free fatty acid가 $0.7{\sim}0.9%$, free sterol이 $1.1{\sim}1.4$이며 sterol이 주구성분(主構成分)으로 되여 있는 불염화물의 함량(含量) 및 phospholipid의 함량비(含量比)가 다른 식물유지(植物油脂)에 비하여 상당치 높았다. 5. 전체지방조성(全體脂肪組成)으로서 불포화지방산함량(不飽和脂肪酸含量)이 현저히 많으며 그중에서도 linolenic acid가 전체(全體)의 50% 이상을 차지하고 있다 각지방(各脂肪) fraction별(別) 지방산조성(脂肪酸組成)은 phospholipid의 구성지방산(構成脂肪酸)이 triglyceride 구성지방산(構成脂肪酸)에 비(比)하여 포화지방산(飽和脂肪酸)인 palmitate의 함량(含星)이 현저히 높았고 sterylglycoside 구성지방산(構成脂肪酸)이 sterylester 구성지방산(構成脂肪酸)에 비(比)하여 불포화지방산함유비율(不飽和脂肪酸含有比率)이 매우 높았다. 산지별(産地別) 지방산조성(脂肪酸組成) 차이(差異)를 보면 total fatty acid 조성(組成)에는 큰차이가 없었으나 phospholipid 구성지방산조성(構成脂肪酸組成)에는 큰 차이가 있어 광주산(廣州産)의 경우 palmitate의 함량비(含量比)가 24%인데 비하여 대구산(大邱産)은 11.8%로서 2배(倍)이상의 차이(差異)를 보여 주었다.

• 한국지역사회생활과학회지
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• 제19권1호
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• pp.55-61
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• 2008

This study was conducted to compare the nutrient and chemical contents of traditional Chungtaejeon tea with that of green tea which was harvested in Jangheung, Jeonnam district. Vitamin C, amino acids and total nitrogen contents of Chungtaejeon tea were lower than that of green tea by 0.30, 2.30 and 4.20g/100g, respectively. The tannin, caffeine, reducing sugar and chlorophyll contents in Chungtaejeon tea were the same as those in green tea. Comparing catechin contents, catechin (C), epicatechin (EC), and epigallocatechin (EGC) in Chungtaejeon tea were lower than those of green tea. However, gallocatechin (GC), epicatechin gallate (ECG), epigallocatechin gallate (EGCG) and catechin gallate (CG) showed no significant difference between Chungtaejeon tea and green tea. The flavonoid contents of Chungtaejeon tea and green tea showed higher quercetin and kaempferol contents in green tea, and higher myricetin content in Chungtaejeon tea. The measured amino acid contents for threonine and aspartic acid were lower, and for glutamic acid were higher in Chungtaejeon tea compared with those in green tea. However, free amino acid content in Chungtaejeon tea and green tea showed no significant difference. Potassium and magnesium contents in Chungtaejeon tea were lower compared to green tea but no significant difference was found for iron, manganese or calcium contents when comparing the two teas.