• 동아시아식생활학회지
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• 제10권6호
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• pp.541-547
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• 2000

The effects of charcoal powder on fermentation of dough and quality of bread were investigated. Charcoal powder was added to wheat flour at concentrations of 0, 0.05, 0.10 and 0.20% The fermentation time of dough with charcoal was reduced by 4 ~12 min compared with that of dough without charcoal. The loaf volume index of bread with 0.05% charcoal powder slightly increased. Bread with charcoal powder showed higher textural properties ( strength, hardness, springness, gumminess, and brittleness) except for cohesiveness than bread without charcoal powder. Color $L^{\ast}$ and $b^{\ast}$ values and hue angle of the top crust decreased while $a^{\ast}$ value increased with increasing charcoal concentrations. $L^{\ast}$ and $a^{\ast}$ values of the inside of bread decreased while hue angle increased with increasing charcoal concentrations. No significant difference in Pleasant taste between bread with and without charcoal powder was observed. However, bread with 0.1% charcoal powder showed the highest scores for pleasant odor, color, and overall acceptability.

• 동아시아식생활학회지
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• 제16권5호
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• pp.559-563
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• 2006

This research was performed to investigate the potential use of Capsella bursa-pastoris (L.) as an ingredient to improve the biological function and flavor of kimchi. The quality characteristics were studied for kimchi with or without Capsella bursa-pastoris (L.) Medicus (CBM kimchi) during fermentation for 25 days at $10^{\circ}C$. The pH changes of CBM kimchi were slower than those of control but did not show any significant difference after addition of Capsella bursa-pastoris (L.) Medicus during fermentation. The titratable acidity of CBM kimchi was higher than that of control. The log number of total bacteria was lower about 1.5 $log_{10}$ cycle in CBM kimchi than in control during fermentation. However, lactic acid bacteria did not show significant difference between CMB kimchi and control. Sensory qualities of kimchi such as color, taste, flavor and overall acceptability were significantly improved by addition of 3% Capsella bursa-pastoris (L.) Medicus(p<0.05).

• Mycobiology
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• 제38권2호
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• pp.122-127
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• 2010

Different strains of mold were screened for the production of high quality Korean traditional rice wine with anti-hypertension and good acceptability. We isolated 867 nuruk mold strains and selected 24 for further study based on measurement of amylase activity. Among them, mold No. 17 showed high ethanol production upon fermentation with Saccharomyces cerevisiae as well as anti-hypertensive properties. The No. 17 strain was therefore selected as the functional mold and later identified as Rhizopus stolonifer based on molecular biological characteristics. Optimal fermentation conditions for the brewing of anti-hypertensive traditional rice wine comprised the addition of R. stolonifer No. 17 koji at a concentration of 35 sp/g and a fermentation period of 10 days at $25^{\circ}C$ using S. cerevisiae.

• 한국식품영양학회지
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• 제34권2호
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• pp.207-216
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• 2021

This study analyzed the quality characteristics of Soksungjang combined with sorghum koji, according to the amount of sorghum added and the length of the fermentation period. The moisture content of Soksungjang was the lowest in the control group when there was no sorghum koji added, but gradually increased as the amount of added sorghum koji increased. The reduction in the sugar content of sorghum Soksungjang did not change according to the fermentation period of the control group, but increased alongside the fermentation period when sorghum koji was added to Soksungjang. The amino nitrogen content increased from 67.20-80.73 mg% from the beginning of the fermentation period to 173.13-383.60 mg% at the end of the fermentation period, and the total polyphenol content increased from 260.25-351.28 mg% from the beginning of the fermentation period to 567.28 mg%-674.93 mg% to the end of the fermentation period. DPPH radical scavenging activity also increased as the fermentation period elapsed, and ABTS radical scavenging activity increased and then decreased slightly over the fermentation period. The antioxidant activity was the highest in the Soksungjang mixture with a 10% concentration of sorghum koji.

• 한국지역사회생활과학회:학술대회논문집
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• 한국지역사회생활과학회 2011년도 추계학술대회
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• pp.110-110
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• 2011

• 한국식품영양학회지
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• 제12권1호
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• pp.1-6
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• 1999

The strain isolated for making chungkuk-jang was Bacillus subtilis which formed sport with 98% ratio. Logarithmical culture was inoculated(1,000 CF/g) to the steamed soybeans and at th optimum fer-mentation conditions(4$0^{\circ}C$, RH 90%) fermentation progressed very rapidly and synchronously. Fermen-tation time was 24 hours on the optimum fermentation conditions. During activated fermentation chun-gkuk-jang's aroma and flavor created. After finishing the fermentation the spore forming ratio was 95% and replenishment was not occured easily during aging at the below 5$^{\circ}C$.

• 한국수산과학회지
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• 제45권6호
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• pp.640-647
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• 2012

Squid Sikhae is a traditional salt-fermented food in Korea. We evaluated the standardization of optimal processing conditions for desirable quality-controlled squid Sikhae using analyses of physiochemical properties, microbiological species, and organoleptic tests. The optimal fermentation temperature, sun-dried sea salt concentration, and fermentation period for manufacturing squid Sikhae products of the aceeptable quality were $10^{\circ}C$, 4%, and 6 days. In addition, optimal concentrations of the additional ingredients of red pepper powder and crushed garlic for acceptable quality squid Sikhae were both 6%.

• 한국균학회지
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• 제31권1호
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• pp.28-33
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• 2003

설탕을 이용한 고부가가치의 버섯 발효식품 제조시 최적 발효기간을 설정하기 위하여 발효기간의 경과에 따른 버섯 발효액의 품질특성과 효소활성 및 생리기능성의 변화를 조사하였다. 점도와 색상을 나타내는 L값, a값, b값 모두 3개월까지 급격히 감소한 후 증가하는 경향이었다. 관능특성은 발효기간이 증가함에 따라 고유의 냄새와 맛은 감소하고, 다른 맛과 냄새는 증가하는 경향이었으며, 전체적인 기호도는 발효 3개월 버섯 발효액이 제일 좋은 것으로 평가되었다. 버섯 발효액 중의 ${\alpha}-amylase$ 활성은 발효 1개월까지 급격히 증가하였고, invertase와 cellulose는 대부분 활성이 낮거나 없었다. 항산화할성은 발효 4개월에 가장 높았고 그 이후에는 약간 감소하는 경향이었으며 tyrosinase 저해활성은 모든 시료에서 높은 활성을 나타내었고, 발효기간의 경과에 따라 변화가 없었다. SOD 유사활성은 팽이버섯 발효액에서 비교적 높은 활성을 나타내었으며, 발효기간에 따라서는 큰 변화가 없었다. 이상의 결과를 종합해 볼 때 설탕을 이용한 버섯 발효액 재품 생산시 최적 발효기간은 3-4개월 정도가 적합할 것으로 판단된다.

• Asian-Australasian Journal of Animal Sciences
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• 제7권4호
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• pp.517-522
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• 1994

Three experiments were carried out to evaluate the fermentation process and subsequent nutritional quality of silage made from dried and fresh barley straw with and without the addition of wet brewers' grains. The treatments were: 1 kg of dried straw with 600 g of water but no wet brewers' grains (I - 0) as a control, and the same straw mixed with 2 kg (I - 2), 3 kg (I - 3), 4 kg (I - 4), or 5 kg (I - 5) of wet brewers' grains as treatments in Experiment I; and 2 kg of fresh straw without wet brewers' grains (II - 0) as a control, and the same fresh straw mixed with 2 kg (II - 1), 4 kg (II - 2), 6 kg (II - 3), or 8 kg (II - 4) of wet brewers' grains as treatments in Experiment II. Each material prepared was ensiled in 5 L (vinyl) bag silos, and the silos placed in a chamber of $21^{\circ}C$ for 10 (Exp. I) or 7 (Exp. II) months. The fermentation quality and nutritive value of the barley straw silages produced were markedly improved by mixing them with wet brewers' grains. Increasing levels of wet brewers' grains caused on increase in fermentation quality. The in vitro dry matter digestibility of silages was also increased by adding wet brewers' grains. Two semi scale pilot silages, experiment III, prepared from dried and fresh barley straw mixed with wet brewers' grains were fed to wether sheep. These silages, which contained 50% barley straw and 50% wet brewers' grains by dry weight, were moderate apparent digestibility and supplied of about 50% TDN and DCP.

• Asian-Australasian Journal of Animal Sciences
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• 제33권2호
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• pp.254-263
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• 2020

Objective: The objective of this study was to investigate the effects of wilting and additives on the fermentation quality, structural and non-structural carbohydrate composition of mulberry silages. Methods: The selected lactic acid bacteria strains Lactobacillus plantarum 'LC279063' (L1), commercial inoculant Gaofuji (GF), and Trichoderma viride cellulase (CE) were used as additives for silage preparation. Silage treatments were designed as control (CK), L1, GF, or CE under three wilting rates, that is wilting for 0, 2, or 4 hours (h). After ensiling for 30 days, the silages were analyzed for the chemical and fermentation characteristics. Results: The results showed that wilting had superior effects on increasing the non-structural carbohydrate concentration and degrading the structural carbohydrate. After ensiling for 30 days, L1 generally had a higher fermentation quality than other treatments, indicated by the lower pH value, acetic acid, propionic acid and ammonia nitrogen (NH₃-N) content, and the higher lactic acid, water soluble carbohydrate, glucose, galactose, sucrose, and cellobiose concentration (p<0.05) at any wilting rate. Wilting could increase the ratio of lactic acid/acetic acid and decrease the content of NH₃-N. Conclusion: The results confirmed that wilting degraded the structural carbohydrate and increased the non-structural carbohydrate; and L1 exhibited better properties in improving fermentation quality and maintaining a high non-structural carbohydrates composition compared with the other treatments.