• 한국식품영양과학회지
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• 제29권2호
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• pp.193-197
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• 2000

The effects of black soybena extracts on enzymes activies of rat were evaluated in present study. Eighty-four male Sprague-Dawley rats weighing 100$\pm$10g were divided into twelve groups which consisted of black soybean extract, Pb and Cd solution, and black soybean extract plus Pb or Cd soln groups. The weight gain was increased in black soybean extracts and Pb soln solution group but decreased in Cd soln solution group. The results obtained form the experiment were as follows: Glutamate pyruvate trasaminase (GPT) and glutamate oxaloacetate oxaloacetate transaminase (GOT) activities were not significantly different among experimental groups. The lactate dehydrogenase (LDH) activities of black soybean extract administered groups were decreased than those of Pb and Cd solution group. Black soybean group increased cholinesterase (ChEase) activity as compared to administration of Pb and Cd soln group.

• 한국식품영양과학회지
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• 제17권2호
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• pp.85-94
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• 1988

두유의 고삽미와 불쾌취를 제거하기 위한 기초 자료를 얻기 위하여 대두에 NaOH, $NaHCO_3$ 용액을 처리하여 phenol 화합물의 변화를 HPLC로 정량하였고, 두유중의 beany flavor를 GC로 분석하였으며, 두유의 일반성분 및 기호도를 측정한 결과 대두중의 phenol 화합물은 chlorogenic, p-hydroxybenzoic, p-coumaric, ferulic, gentisic acid가 확인되었으며, chlorogenic acid 함량이 가장 높았다. 대두중의 phenol 화합물중 chlorogenic acid는 주로 결합형, 기타 다른 phenol 화합물은 유리형으로 대부분 존재하였다. 대두를 0.1% NaOH용액으로 8시간 침지하였을 때 chlorogenic acid는 85% 이상이 제거되었다. 대두중의 phenol화합물 제거에는 NaOH용액이 효과적이었고, 온도가 높아짐에 따라 제거율도 높아졌으며, 0.1% NaOH용액에게서 $90^{\circ}C$, 1시간처리하였을 때 phenol 화합물은 대부분 제거되었다. 물, 0.1% NaOH 및 0.5% $NaHCO_3$ 용액으로 침지하여 제조한 두유의 일반성분은 처리간에 비슷하였다. NaOH 용액 처리에 의하여 두유의 beany flavor 중 hexanol은 증가하였으나, hexanal, propanal, pentanal은 60% 이상이 제거되었다. NaOH 용액처리, 고온침지처리에 의하여 두유의 yellowness는 증가하였으나 물과 저온 침지처리에서는 whiteness가 증가하였다. 대두를 0.1% NaOH 용액으로 $90^{\circ}C$에서 1시간 처리하여 제조한 두유의 기호도가 가장 좋았다.

• 한국유기농업학회지
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• 제23권4호
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• pp.939-950
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• 2015

The purpose of this study was to estimate the growth promoting effects and improvement of antioxidant activity of the soybean sprouts treated with Chlorella sp. culture solution. The soybean sprout treated with 0.1% and 0.2% Chlorella sp. culture solution was significantly increased the length (more than 43.0%), the thickness (more than 0.5~0.7 mm), fresh weight (more than 2.9~3.7 g) compared to non-treated control in vitro. In organic soybean sprouts farm, the 0.2% chlorella culture solution applied to mass culture of soybean sprout and the fresh weight of soybean sprouts increased by more than 25% and the yield was very high as 598.33% compared to untreated control. In addition of sensory test, there is no fishy odor and better crunchy texture and nutty flavor for the treatment soybean sprouts compared to untreated soybean sprouts. Particularly, free-radical scavenging activity (DPPH) and superoxide dismutase activity (SOD) of the soybean sprouts were significantly increased more than 26.1% and 40.4%, respectively by treated with 0.1% and 0.2% Chlorella culture solution. Consequently, the treatment of chlorella culture solution to grow soybean sprouts is also promoting quality and antioxidant activity as well as promoting the growth of sprouts. Therefore, chlorella is considered to be worth as functional materials for high-quality sprouts grown.

• 한국식품저장유통학회지
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• 제11권1호
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• pp.17-21
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• 2004

본 실험에서는 식품의 미생물작용에 의한 변질의 저해 효과가 뛰어난 식물성천연항균제품(botanical antimicrobial agent)에 천연보조제(인삼추출물, 알로에, 매실추출물)를 첨가하여 paper disk법에 의한 항균성 검사를 실시한 결과, 인삼추출물을 첨가한 천연복합항균제재(BAAG)에서 생육저해환이 가장 크고 뚜렷하게 나타났다. 한편, 천연 항균복합제재 용액에 콩나물용 콩을 농도별로 각각 침지 처리하여 냉장 및 상온에 저장하면서 대장균수, 총균수의 변화를 살펴보고, 외관상의 변화에 미치는 영향을 수도수로 침지처리한 대조구와 비교하면서 조사하였다. 실험 결과, 대장균은 BAAG의 침지처리에 의해 성장이 억제되었으며 처리농도가 증가시킬수록 균증식 억제 효과가 뚜렷하였고, 총균수도 BAAG 처리구의 콩나물이 가장 낮은 수치를 나타내었다. 외관상의 변화와 상품 가치를 측정한 결과는 수도수처리구인 대조구 콩나물이 저장 3일 후부터 부패취와 함께 표피의 점질성 갈변이 형성되어 상품가치가 크게 떨어진 상태였다. 위와 같은 결과, BAAG용액 속에서 콩나물 콩을 발아시켜 침지 처리함으로써 콩나물의 유통기간을 상당기간 연장할 수 있을 것으로 기대된다.

• 한국식품영양학회지
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• 제16권3호
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• pp.218-223
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• 2003

This study is proceeded on the development of standard method for making soybean paste by Korean traditional method. Fermentation condition of Meju was 1) Pre-fermentation : 30 days in about 20$^{\circ}C$ room, 2) Main fermentation : 5 days in 30$^{\circ}C$ or upper temperature, 3) Post fermentation and drying : 30 days in well sunlightened room in January. Meju was soaked in 18% salt solution(Meju 7kg/salt solution 20L) for 35～40 days (from late February to early April) and after soaking Meju was filtered as unsoluble solute and crushed and put into traditional Korean receptacle(named 'Dok'). Crushed Meju was stored from early April to mid September and Meju was changed into soybean paste(Doen-jang). During fermentation amino acid nitrogen in Doen-jang was slightly increased in early period and decreased lately. It has been proved that by panel test soybean paste made by the method suggested in this study was more excellent than commercially fermented soybean paste. This study has presented the possibility of commercial production of soybean paste made by traditional method.

• 한국작물학회지
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• 제46권4호
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• pp.284-288
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• 2001

Water deficit is a serious constraint to soybean [Glycine max L. (Merr.)] production in rainfed regions of Asia, Africa, and America. This study was conducted to develop a simple and effective screening method for drought tolerance in soybean. Fifteen soybean cultivars, eight identified to be drought-tolerant and seven drought-sensitive in previous studies, were used for the evaluation of drought tolerance under the new screening conditions. The seedling screening method was consisted of a treatment in a PEG solution and drought treatment in parafilm-layered pots. 5-day-old seedlings were treated in a 18% PEG solution for 4 days and their wilting and hypocotyl browning were recorded. Three seedlings grown in a parafilm-layered pot containing peat moss were drought-stressed by withholding water from the third day after seedling emergence, and root and seedling growth were examined. Degree of drought tolerance were rated based on seedling vigor in the PEG solution and drought-stressed parafilm-layered pots, and also on the penetration ability of roots through parafilm layer. Most of seedlings of the drought-tolerant cultivars showed higher vigour and root penetration than those of the drought-sensitive cultivars under the new screening conditions. Our results indicate that the new method can be used as a simple and effective screening procedure for drought tolerance in soybean breeding programs.

• 한국의류산업학회지
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• 제9권1호
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• pp.103-112
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• 2007

The purpose of this study was to investgate dyeing, moradnting properties and colorfastness activities of silk, polyamide, acetate treated black soybean extracts. The color of extract by buffer solution (pH=1) red, but the higher pH of extracted black soybean solution the paler of color strength. Black soybean extracts was approved anthocyanin of 3type(Delphinidin3-glucoside, Cyanidin 3-glucoside, Petunidin 3-glucoside) by chemiclal analysis. This anthocynin, in acid condition, is oxinium structure (red color, soluable) but, in alkali condition quinoid structure(dark brown, in soluable). The optimum dyeing condition of black soybean anthocynin was 10min at $30^{\circ}C$, pH -1. Colorfastness to washing and light showed generally low but crocking fastness was excellent.

• 한국염색가공학회지
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• 제17권5호
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• pp.20-25
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• 2005

The colorants were extracted from black soybean using a buffer solution. Dyeing properties and the fastness of silk fabric dyed with black soybean extracts were investigated. K/S values of dyed fabric were increased with concentration of black soybean extracts. Magnesium sulfate, nickel sulfate and calcium chloride as mordants are used to obtain reddish purple color. Optimum dyeing temperature of black soybean extracts was $30^{\circ}C$. Fastness were generally good except for light fastness which was extremely poor.

• Journal of Plant Biology
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• 제17권3호
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• pp.127-136
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• 1974

The effect of potassium metabolism on the soybean leaves was studied with comparison of other elements during the successive growing period. The results were as follows; 1. The percentage of potassium content showed remarkable increase not only in the first compound leaf at a stage which was growing vigorously and producing new leaves, but also in the fifth compound leaf at a stage which was taking a active metabolism of nitrogen and carbohydrate but not producing new leaves. However, the percentage of potassium content was decreased in the second compound leaf than in the first one. Such a result could be regarded as a potassium removal from mature leaves into immature and flowing out from stoma through respiration. During the pod-development the percentage of potassium content in the soybean leaf was decreased. 2. If nitrogen, phosphorus and potassium were added excessively in the nutrient solution, the percentage of potassium content in the soybean leaf had increased. The effects of these elements showed a remakable increase in the excessive plot of nitrogen than in that of phosphorus. At early stage the redtarded effect of phosphorus on the growth of soybean could be covered by potassium, however, at late stage it could not. The growth of soybean plant was much more inhibited by potassium, compared with nitrogen and phosphorus. New leaves could not be produced in the potassium deficient soybean plant after the third compound leaf. The normal growth of soybean plant could not be observed if only one element was excessively added to the culture solution, compared with the deficiency of other two elements.

• 한국식품영양학회지
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• 제9권2호
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• pp.167-175
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• 1996

This studies were conducted to select optimal enzyme that produced hydrolysate from soybean, and to evaluated functionality of hydrolysate. Soybean powder was suspended with water and hydrolyzed by seven commercial proteases. Hydrolysate produced with protease from Bacillus subtilis showed the highest inhibition effect on the activity of angiotension converting enzyme(ACE), and the condition of enzymatic hydrolysis was 5cA substrate concentration, 0. l% enzyme concentration, 4 hour hydrolysis time. Under above optimum condition, soybean was hydrolyzed with protease from Bacillus subtilis yielding a DH (degree of hydrolysis) of about 49%. Hyrophobicity of hydrolysate was not correlated with the inhibition effect on ACE activity. The functionality of hydrolysate was significantly influenced by pH. Solubility of hydrolysate at alkali solution was greater than that at acidic solution.