• Proceedings of the Korean Society of Fisheries Technology Conference
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• 한국어업기술학회 2000년도 춘계수산관련학회 공동학술대회발표요지집
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• pp.110-111
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• 2000

액젓의 발효 과정에서 단백질 화합물은 효소 및 미생물의 작용에 의하여 분해되어 맛에 영향을 미치는 유리아미노산 및 저분자 질소화합물 혹은 부패 지표 활용 가능한trimethylamine, ammonia 및 dimethylamine까지 분해되고(Beddow, 1985), 핵산 관련물질은 uric acid까지, 지질은 분해되어 주로 액젓의 냄새에 관여하는 휘발성 성분을 생성한다(Jay, 1966; Nozawa et al., 1979). 액젓 품질에 영향을 미치는 인자는 크게 어종, 염의 형태, 시료어와 염의 혼합비, minor ingredient, 발효 조건 등으로 분류할 있으며, 이 중 가장 큰 비중을 차지하는 원료 물질은 어육과 염으로서 어육은 발효 중 효소 및 미생물 작용의 기질로 제공되고, 염은 발효 중 미생물의 형태나 병원성 미생물의 생성을 억제한다. (중략)

• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 한국식품저장유통학회 2003년도 제23차 추계총회 및 국제학술심포지움
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• pp.159.1-159
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• 2003

표준화된 청국장 제조법으로 대두를 정선, 수세 후 3배의 물을 가하여 24시간 침지하고 물빼기를 한 후 121$^{\circ}C$에서 1시간 동안 증자한 후 4$0^{\circ}C$까지 냉각한 후 재래청국장으로부터 분리한 B. lichenifomis 균주를 2% 접종, 4$0^{\circ}C$에서 54시간 발효시켜 청국장을 제조하였으며 발효 방법에 따라서는 종균을 접종한 경우가 가장 우수한 발효양상을 보였다. 감초추출물을 첨가하여 제조한 청국장의 품질특성을 알아본 결과 첨가농도가 증가할수록 pH가 증가하였으며 환원당 함량도 증가하였다. 색도는 첨가농도가 증가함에 따라 다소 어두워 졌으나 점질물의 생성량은 증가하는 경향이었다. 관능검사결과를 종합해 보면 5%의 첨가구에서 가장 높은 기호도를 보여 증자 대두에 감초추출물을 혼합하여 발효했을 경우 점질물의 생성의 증대는 물론 기호도의 향상에도 크게 기여하였다.

• Applied Biological Chemistry
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• 제46권3호
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• pp.220-224
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• 2003

Soy sauce added shiitake mushroom (Lentinus edodes) at a concentration of 0, 5 or 10% (w/w) was prepared and its quality characteristics were analyzed during the fermentation for 6 months. The contents of total nitrogen (TN) and amino type nitrogen (AN) increased with similar pattern during the fermentation period regardless of the added amount of mushroom. The pH values of soy sauce decreased significantly with increasing fermentation periods, while soy sauce added shiitake mushroom showed lower value. However, shiitake mushroom in soy sauce did not affect electron donating ability. The contents of total amino acid and total essential amino acid in the soy sauce containing 5% mushroom were 31.74 mg/100 ml and 19.01 mg/100 ml after 6 months of fermentation period, respectively.

• The Journal of Natural Sciences
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• 제19권1호
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• pp.37-44
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• 2008

To develop a new functional wine, manufacture and quality characteristics of wild grape wine were investigated. Ethanol contents of wild grape wine was 11.0%, and total acidity and volatile acid content were 0.63% and 0.0402%, respectively. Antioxidant activity of the wild grape wine which is related in anti-aging functionality, was 41.6%. From this results, we concluded that the wild grape wine is a high valuable wine.

• Proceedings of the Korean Society of Postharvest Science and Technology of Agricultural Products Conference
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• 한국식품저장유통학회 2003년도 제23차 추계총회 및 국제학술심포지움
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• pp.202.2-203
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• 2003

전통주의 계승발전을 위해 전통주의 개선과 재현의 필요성이 높아짐에 따라 지난날 맛 좋았던 우리의 전통주의 연구와 개발이 활발히 진행되고 있다. 또한 최근 미곡의 과잉생산으로 인한 과잉쌀 생산에 대한 수요체 창출을 위한 쌀가공품의 개발이 매우 시급한 실정이다. 최근 알콜농도가 낮은 술을 선호하는 경향과 전통주의 특수한 풍미로 인하여 현재 전통주는 많은 사람들로부터 각광을 받고 있어서 현재 몇몇 지역에서 민속주와 토속주가 허가되어 시판되고 있다. 진양주는 전남 해남지역의 전통민속주로서 해남지역에서 생산되는 찹쌀을 원료로 하여 상온에서 발효시키는 독특한 방법으로 제조되는데 이 진양주는 발효과정에서 외부환경의 영향을 많이 받게 된다. 그중 외부온도는 진양주의 품질에 직접적인 영향을 미치게 되는데 아직까지는 진양주제조과정에서 최적발효온도에 대한 연구는 보고된 것이 없다. 본 연구에서는 발효온도를 2$0^{\circ}C$와 $25^{\circ}C$로 하였을 때 발효과정에서 술의 품온, pH, 당도, 알콜함량, 총산의 변화를 조사하였으며 관능검사를 통하여 종합적인 기호도를 평가하여 최적의 발효온도를 탐색하고자 했다. 발효과정에서 술의 품온은 온도계를 사용하여 측정하였고 pH는 pH-meter로 측정하였으며 당도는 당도계를 이용하여 측정하였다. 알콜함량과 총산은 국세청의 주류분석규정에 따라 증류법과 중화적정법을 사용하여 측정하였다. 관능검사는 식품공학과 대학원생과 학부생 10명을 대상으로 종합적인 기호도에 대하여 5단계 평점법으로 실시하였다. 2$0^{\circ}C$에서 발효시 품온은 20.2~23.8$^{\circ}C$사이에서, $25^{\circ}C$에서 발효시 품온은 25.2$^{\circ}C$~28.2$^{\circ}C$사이에서 변화되었고 pH는 2$0^{\circ}C$ 발효시 3.47~4.62 사이에서, $25^{\circ}C$ 발효시 pH는 3.28~4.65사이에서 변화되었고 최종 pH는 2$0^{\circ}C$에서 발효시 3.71로써 $25^{\circ}C$ 발효시 3.58보다 높았다. 최종당도는 2$0^{\circ}C$, $25^{\circ}C$ 발효시 각각 10.2。Brix와 8.4。Brix 였고 알콜농도는 2$0^{\circ}C$발효시 13.8%로 $25^{\circ}C$ 발효시 14.8% 낮았으며 총산은 2$0^{\circ}C$ 발효시 1.32%로 $25^{\circ}C$ 발효시 1.62%보다 낮게 나타났다. 관능검사를 통한 종합적인 기호도는 2$0^{\circ}C$에서 발효시킨 진양주가 4.2로써 $25^{\circ}C$에 발효시킨 진양주 3.5보다 높은 것으로 나타났다. 관능검사시 $25^{\circ}C$에서 발효한 진양주는 신맛이 많이 난다는 결과로 볼 때 최종 pH가 3.58로 낮고 총산이 1.62%로 높아서 나온 결과라고 생각된다. 결론적으로 진양주를 제조할 시 발효온도는 2$0^{\circ}C$가 발효온도 $25^{\circ}C$보다 더 적합하다고 생각된다.

• Proceedings of the Korean Society of Grassland Science Conference
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• 한국초지조사료학회 2001년도 제25회 정기총회 프로그램 제39회 학술발표회 및 특별강연 초록(한국초지학회)
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• pp.102-102
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• 2001

• Journal of Applied Biological Chemistry
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• 제65권4호
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• pp.375-381
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• 2022

The purpose of this study was to evaluate the quality characteristics and biological activities of Rosa multiflora Thunberg fruit extracts fermented with Lactobacillus plantarum based on fermentation period of 0, 24, 48, and 72 h. The study showed the pH of Rosa multiflora Thunberg fruit fermentation extracts have decreased as fermentation time increased, but the sugar content remained the same. The total acid content increased as the fermentation time increased. The viable cell count was at highest at 24 h (8.59 log CFU/mL) of fermentation, and the viable cell count decreased as the fermentation time increased. The total polyphenol content (14.85 mg GAE/g), total flavonoid content (6.74 mg RE/g), 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity, ABTS⁺ radical scavenging activity, reducing power, α-glucosidase and α-amylase inhibitory activity were highest at 24 h of fermentation. Therefore, the study proved fermentation of Rosa multiflora Thunberg fruit with lactic acid increases physiological activity compared to nonfermented Rosa multiflora Thunberg fruit. Also the 24 h of fermentation had the highest activity, confirming the possibility of future use as a functional food material.

• Food Science and Preservation
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• 제11권2호
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• pp.233-239
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• 2004

Anchovy soy sauce containing anchovy sauce was ripened in different vessels at 30$^{\circ}C$ for 4 months and measured in physical, chemical, microbiolgical and sensory quality attributes. The used vessels include glass, polypropylene (PP), polyethylene terephthalate (PET), stainless, and onggi (Korean earthenware) with 628 mL. Compared to the other vessels, onggi gave the highest moisture loss, maintained consistently higher microbial counts in total aerobic bacteria, lactic acid bacteria and yeasts, and attained high protease activity in the soy sauce product. Even with high moisture loss the onggi vessel did not produce the higher product salt content than the other vessels because there was salt diffusion outward through the container wall. All of these changes of the product in onggi resulted in lower pH, higher acidity and higher amounts of free amino acids and nucleotides after 4 month period, which was desirable for sensory quality.

• Journal of the Korean Society of Food Science and Nutrition
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• 제30권4호
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• pp.617-622
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• 2001

Changes of quality properties of fermented tofu prepared with two molds like Actinomucor elegans (AE) and Rhizopus oligosporus (RO) and coagulants (CaCl$_2$ and citric acid) were investigated. Moisture and crude protein of fermented tofu were rapidly decreased during fermentation, the contents of crude lipid and crude ash were shown to be slightly increased, ad then total acidity was slowly decreased. The content of reducing sugar of fermented tofu was slowly increased for 7 day of fermentation, but rapidly increased after that time because of rapid hydrolysis of carbohydrate in fermented tofu. The contents of amino and ammonia type nitrogen were quickly increased during fermentation. The highest contents of amino type nitrogen of fermented tofu were found in sample of CaCl$_2$group as a coagulant and RO group as a mold. Contents of minerals in tofu fermented for 14 day were high in order of K>Ca>Mg>Na. Iin conclusion, AE was more effective than RO to enhance the contents of reducing sugar and amino type nitrogen as an indicator of fermentation within 7 day of fermentation, and then RO was more effective than AE after that time. Calcium chloride as a coagulant was more effective than citric acid in tofu fermented with the same strain for 14 day.

• Journal of the Korean Society of Food Science and Nutrition
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• 제33권10호
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• pp.1703-1708
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• 2004

This study was carried out to investigate the characteristic quality of jeungpyun added Paecilomyces japonica with different fermentation time. The volume of jeungpyun added Paecilomyces japonica was more increased after fermentation. The volume was decreased when the fermentation was progressed. The pH was 5.1 before fermentation and the pH decreased when the fermentation was progressed. Moisture content was more increased as the time of fermentation became longer. Hunter color test, L value and b value appeared the highest after 1st fermentation, and it appeared lesser when the time of fermentation became longer. In measurement of texture, hardness showed the highest value when 90 minutes passed after the 2nd fermentation. Gumminess and brittleness were tend to increase when it have longer fermentation time. In scanning electron microscopic observation, organization of sponges was tend to break down as the fermentation time was longer. Sensory properties showed that color intensity was more strong when second fermentation was progressed, and hardness, toughness, sourness were high when the fermentation time was longer. In conclusion overall acceptability of jeungpyun, 3$0^{\circ}C$, 3 hours after 1st fermentation and 2nd fermentation for 30 minutes, 35$^{\circ}C$ showed the most preference.