• 한국식품과학회지
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• 제49권4호
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• pp.415-420
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• 2017

Soybean sprouts are the third-most consumed vegetable in Korea. Several studies on cultivation techniques, including use of medicinal plants extracts, have been performed to enhance the quality and yield of soybean sprouts. The objective of the present study was to investigate the effect of lacquer, a medicinal plant extract, on the yield and nutritional value of soybean sprouts. Linolenic acid content was significantly (p<0.05) increased in the sprouts produced by soaking seeds in lacquer extract diluted with equal volume of water. Lacquer extract significantly increased the flavonoid and phenolic contents (p<0.05). The content of total free amino acids, including ${\gamma}$-aminobutyric acid, was higher in lacquer extract-treated sprouts than in the untreated control. Results of this study suggest that lacquer extract could be used for enhancing the yield and nutritional values of soybean sprouts.

• 치위생과학회지
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• 제2권2호
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• pp.85-88
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• 2002

구강에서 분리한 세균에 대한 오미자 추출물의 증식저해를 조사하였다. 물을 추출용매로 사용할 때의 추출수율은 53.8%로 메탄올보다 높았고, 추출온도가 높은 것이 보다 유리하였다. 구강에서 분리된 세균의 생육에 대한 오미자 물추출물의 영향을 조사한 결과, 오미자 물추출물은 강한 항균력을 보였다. 구강에서 분리된 세균에 대한 오미자 물추출물의 최소저해 농도는 ${125{\sim}1000{\mu}g/ml}$의 범위인 것으로 나타났다.

• 한국식품영양과학회지
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• 제33권5호
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• pp.899-904
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• 2004

압출성형공법을 이용한 수삼의 전처리를 통한 추출수율의 향상과 최적조건에서 열수 추출한 인삼추출액의 첨가량을 달리하여 저온압출공정으로 제조한 구형과립의 입자분포, 마모율, 용적밀도, 진동밀도, 압축지수와 용출패턴을 결정하였다. 열수추출수율에서 수삼을 압출성형할 때 수분함량이 가장 유의적으로 영향을 미쳤다. 수분함량의 감소와 함께 스크류 회전속도가 증가할수록 압출성형 수삼의 추출수율이 크게 증가하였다. 추출수율이 최대가 되는 압출성형 공정변수는 수분함량 15%, 스크류 회전속도 250 rpm, 사출구 부위온도 13$0^{\circ}C$였다. 동일한 추출조건에서 15개 압출성형 수삼 시료의 평균 추출수율(43.5%)은 홍삼(38.3%)과 백삼(29.0%) 추출수율과 비교하여 크게 향상되었다. 저온압출공정으로 압출성형 수삼농축액(고형분함량 59.2%)의 농도를 5, 20, 30, 40, 50, 60%로 각각 증류수에 희석한 용액 200 mL과 200 g 미세결정 셀룰로오즈를 이용하여 과립화시킬 수 있는 압출성형 수삼추출액의 최대 농도는 60%였으며 추출액의 증가와 함께 입자수율의 증가, 마모율의 감소, 압출지수의 감소 등으로 입자의 물리적 특성은 구형과립을 젤라틴 캡슐에 포장하여 제품화할 수 있었다. 또한 압출성형 수삼 추출액을 포함한 구형과립으로부터 농축액 성분이 10분 이내에 쉽게 용출되므로 구형과립은 젤라틴 캡슐에 적합하다는 결론을 내릴 수가 있었다.

• 한국식품과학회지
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• 제31권2호
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• pp.391-398
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• 1999

국내산 생강의 높은 원료비를 극복하면서 품질이 우수한 중간소재성 가공제품을 개발하기 위하여 효소적 추출기법을 적용하였을 때의 수율 및 품질변화를 조사하였다. 생강을 1차 착즙하고 남은 잔사를 $\alpha$-amylase로 가수분해한 후 2차 착즙하고 다시 남은 잔사에 90% 에탄올로 $30^{\circ}C$에서 1시간 추출하여 각각 착즙액을 혼합할 경우 단순 착즙액보다 동일 $^{\circ}Brix$ 기준으로 약 2.8배 정도, 펄프보다는 건물기준으로 약 5배 이상 착즙수율을 증진시킬 수 있었다. 이와 같이 제조된 최종 추출액에는 착즙액 보다 조섬유가 약 62%, 전분이 48%정도 감소하는 결과를 나타내어 작업공정의 개선이 가능함을 알 수 있었다. 또한 최종 추출액은 착즙액에 비하여 유리아미노산이 약 40% 정도 소실한 반면 유리당은 약 270% 증가하는 결과를 보여주고 있어, 생강의 효소적 추출법은 생강 가공제품 제조시 단맛을 강화하는 효과를 제공할 수 있었다.

• 한국식품영양학회지
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• 제8권1호
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• pp.17-22
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• 1995

The effect of particle size of raw material on the field of extract and changes in composition of Ssang Wha Tang was investigated during manufacturing. As the size of particle was decreased the yield was increased. The yield of extract increased as much as double times as the diameter of the particle decreased from 10 m to 1 m. But the composition of extract was not varied much as the diameter of the particle differed. From these results, it is concluded that cutting method affects the productivity of Ssang Wha Tang.

• 동의생리병리학회지
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• 제21권6호
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• pp.1506-1512
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• 2007

In order to investigate the totale yield, the content of soluble polysaccharide and the others of FEW extract from the yeast fermentated Ganoderma lucidium by supersonic method, the yeast strain was inoculated after pretreatment and subsequently followed fermentation and supersonic extract. The main construction of the extract method is composed of the main glucose and together with the xylose, fucose, galactose and mannose. Results show that because of the generated lactic acid and ethanol, pH value of extract decreases and the safety as well as the preservation is improved. The extract yield, the total soluble polysaccharide, SOD-like activity, cytotoxic effect and growth inhibitory effect against cancer cell line are much higher in FE method than RE method, especially FEW3 extracts fermented during 24hrs. It is concluded that yeast fermentation makes the extract yield increase because of the cell disintegration, the useful ingredients of the germ body, the metabolic products, the insoluble ingredients due to the generation of ethanol, and the cell fragmentation caused by the supersonic waves vibration. Content of generated ethanol, total soluble polysaccharide and extract yield all increase during the fermentation time from 24 to 72 hours and the optimum fermentation condition is at $27^{\circ}C$ for 72 hours. The bitter taste and smell of the Ganoderma lucidium extract is diminished, fragrant-bitter taste and smell is generated so that the whole functional quality is improved.

• 기술사
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• 제33권1호
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• pp.106-115
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• 2000

The effect of puffing treatments on the sensory qualities improving of Ginseng Extract were investigated in the good products for rejecting soil flavor as Ginseng foreign bad taste, through chemical analysis and actual manufacturing practice, the following results were obtained. Puffing treated<15kg / ㎠psi> ginseng has produced a marked increase in soluble solid, crude saponin yield to the extent of 10% and without soil taste as compared with control Ginseng. Optimum Ginseng ethanol extraction condition were 90$\^{C}$ for 8 hours, which was cheap operating cost and color, apperance, total solid yield of Ginseng extracted products. For 70% ethanol extraction in temperature range of 60∼90$\^{C}$ for 8 hours, the higher temperature resulted higher yields in solids and Ginsenoside Especially, GinsenosideRgl as most effective physiological function component yield was increased in 18% by puffed Ginseng than control Cinseng products. The Hunter's color, L. a and b values of Ginseng extract were 31.09, 21.9 and 49.5 and increase brown and red color value and total Δ Evalue.

• 셀메드
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• 제11권3호
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• pp.15.1-15.9
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• 2021

The chemical constitution of a drug has been accepted as an important basis for pharmacological action in Unani medicine. Various dosage forms have been developed on this concept, such as decoctions (Joshanda), infusions (Khesanda), extract (Rub / Usara), and syrup. Zarawand Mudaharaj (ZM.) / Aristolochia rotunda L. root was subjected to extraction process using Soxhlet's apparatus by using Response Surface Methodology (RSM) to design the number of random runs of the extracts with variation in the factors of temperature, the concentration of ethanol in water, time for extraction, for optimizing and maximizing the yield concentration. The data obtained, was analyzed with regression equation and ANOVA two-way summary to interpret the interaction of the factors for yield maximization. Minitab version 18 was used to design and analyze data. Validation of the optimum conditions for maximum yield of the whole extract of ZM. Root was carried out by re-run of the extract using the optimized conditions. The maximum yield percentage thus obtained using RSM was 20.87% whereas using these optimum conditions 21.35 % yield was obtained thereby validating the method. The association between the response functions and the process variables was identified by a three-factor recorded Box-Behnken design. In the present study RSM is used because itis a cheap and affordable method to optimize maximum yield percentage which may be reliably used by researchers. The study set in the surface conditions for ZM. root extraction by the Soxhlet apparatus for maximizing the yield percentage.

• 한국한의학연구원논문집
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• 제18권3호
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• pp.147-154
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• 2012

Objectives : This study was performed to find best extraction solvent for application of Ulmi cortex to food or herbal medicine as an antioxidant only using water, ethanol and their mixtures. Methods : The Ulmi cortex extracts were prepared using water and 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% and 100% (v/v) ethanol, and were evaluated yields, total polyphenol contents, DPPH and ABTS radical scavenging activities, lipid peroxidation activities, and catechin and epicatechin contents. Results : Among the Ulmi cortex extracts, the yield was highest in water extract (8.9%) and lowest in ethanol extract (3.8%). The yield of 30% ethanol extract (8.5%) also was very high to similar with water extract. The total polyphenol content was highest in the 30% ethanol extract ($253.6{\mu}g/mg$ extract) and lowest in water extract ($109.0{\mu}g/mg$ extract). The DPPH radical scavenging activity was highest in ethanol extract (IC50, $8.53{\mu}g/ml$), ABTS radical scavenging activity was highest in 60% ethanol extract (IC50, $3.08{\mu}g/ml$), and the inhibition of lipid peroxidation was highest in 70% ethanol extract (IC50, $7.96{\mu}g/ml$). As ethanol content of extraction solvent increased from 0% to 30%, the antioxidant activities were remarkably increased whereas from 30% to 100%, the antioxidant activities were increased or decreased a little. Conclusions : The findings of the present study suggest that 30% ethanol is best solvent for extraction of Ulmi cortex, considering yield, polyphenol content, and antioxidant activities with extraction cost.

• 한국식품조리과학회지
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• 제28권1호
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• pp.51-55
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• 2012

This study was conducted to investigate the physicochemical properties of citrus peel extracts with different hot water extraction and enzymatic hydrolysis conditions. Enzymatic hydrolysis was also employed using Viscozyme L and results were compared with that of optimized hot water extract. Hot water extraction was performed under different parameters; the sample to solvent ratio(1:20, 1:15, 1:10), extraction time(2, 4 hrs), extraction temperature(85, $95^{\circ}C$) and enzymatic hydrolysis(0, 1%) and the subsequent extracts were used for determining their physicochemical properties, such as total yield, total phenolics, total flavonoids, and electron donating ability (EDA). With the increase in the sample to solvent ratio and extraction time, total yield, total phenolics, total flavonoids and EDA increased. But extraction temperature did not significantly affect the hot water extract. As hot water extract was hydrolyzed by the enzyme, total yield and active ingredients increased rapidly. In the result of total yield, total phenolics, total flavonoids and EDA, the activity of enzyme-treated extract was higher than those of enzyme-untreated extract. Based upon the overall hot water extraction efficiency, it was found that 20 times volume or 120 min at a time at $95^{\circ}C$ after enzyme treatment was optimal.