• 제목/요약/키워드: free aroma

검색결과 88건 처리시간 0.031초

개량누룩으로 제조한 탁주의 중요 향미성분 분석 (Analysis of Mahjor Flavor Compounds in Takju Mash Brewed with a Modified Nuruk)

  • 이영숙
    • 한국식품영양학회지
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    • 제12권4호
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    • pp.421-426
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    • 1999
  • The major flavor compounds of Takju mash which was brewed with a modified Nuruk made by inocu-lation and cultivation of Rhizopus japonicus T2, Aspergillus oryzae L2 and Hansenula sp. BC26 isolated from Nuruk, were analyzed, as compared with those with current fermenting agents such as commerical Nur-uk and rice koji of Aspergillus kawachii. The contents of isoamyl alcohol isobutyl alcohol and ethyl acet-ate which were known as aroma compounds in Takju were much higher in mash of modified Nuruk than in that of commercial Nuruk or ricd koji. The major organic acids were lactic fumalic and succinic acid in mash of modified and lactic and acetic acid in mash of commercial Nuruk and citric lactic and suc-cinic acid in mash of rice koji. The contents of total organic acids were 5,146mg/L, 1,706mg/L and 1, 388 mg/L in mash of commercial Nuruk rice koji and modified Nuruk respectively. The major free amino acids were glutamic acid alanine proline and histidine in mash of modified Nuruk and glutamic acid proline leucine and histidine in mash of commercial Nuruk and arginine proline and glutamic acid in mash of rice koji. The contents of total free amino acids were 14,090mg/L 12,202mg/L and 7,152 mg/L in mash of modified Nuruk commercial Nurcuk and rice koji respectively. Therefore it seemed that the Takju mash of modified Nuruk was better than that of commercial Nuruk or rice koji.

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발효강황 첨가 선식의 항산화적·관능적 및 미생물적 품질 특성 (Antioxidant Activity, Sensory Characteristics, and Microbial Safety of Sunsik with Fermented Turmeric Powder)

  • 오수보;김은경;라하나;변양수;김혜영
    • 한국식품조리과학회지
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    • 제32권5호
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    • pp.600-608
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    • 2016
  • Purpose: To investigate the antioxidant, physicochemical sensory, and microbial safety qualities of sunsik containing fermented Curcuma longa L. powder. Methods: Quality characteristics of samples were measured using pH, moisture content, crude ash content, color and sensory evaluation. Antioxidant activities of samples were compared using 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)(ABTS) cation radical scavenging activities. Microbial safety of samples were tested for Aerobic plate counts, Salmonella spp., Bacillus cereus, Listeria monocytogenes, Staphylococcus aureus, and Escherichia coli O157:H7. Results: The pH of samples was between pH 5.51 and pH 5.64, which was significantly lower than the optimum microbial living range. The DPPH and ABTS radical activities of sunsik containing 0.8% fermented Curcuma longa L. were significantly increased compared to that of the control (p<0.05). In sensory intensities, sunsik containing 0.8% fermented Curcuma longa L. showed significantly (p<0.05) similar savoy aroma and flavor, spicy aroma, spicy hot flavor, sweet flavor, and throat swallowing values to those of the control samples. Samples of sunsik added 0.8% and 1.2% fermented Curcuma longa L. showed significantly similar overall acceptance values to those of the control. All samples tested were found to free of microbes and microbiologically safe according to the food code standards. Conclusion: The sunsik added with 0.8% or 1.2% fermented Curcuma longa L. powder were successfully developed. we conclude that the developed sunsik with the fermented turmeric powder can be potentially high value products in the highly competitive sunsik food industry.

Comparison of Physicochemical and Sensory Properties between Cholesterol-removed Gouda Cheese and Gouda Cheese during Ripening

  • Jung, Ho-Jung;Ko, Eun-Jung;Kwak, Hae-Soo
    • Asian-Australasian Journal of Animal Sciences
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    • 제26권12호
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    • pp.1773-1780
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    • 2013
  • This study was performed to compare physicochemical and sensory properties of cholesterol-removed Gouda cheese (CRGC) and Gouda cheese made in the laboratory during ripening. Composition, short-chain free fatty acids (SCFFA), texture, color, and sensory properties were measured. In chemical composition analyses, moistures were significantly different between control cheeses (42.86%) and sample cheese (48.32%) (p<0.05). But fat and protein in the control and the sample were 32.77, 22.45 and 31.35, 20.39%, respectively, and were not significantly different (p>0.05). The amount of cholesterol in control was 82.52 mg/100 g and the percentage of cholesterol removal was 90.7%. SCFFA increased gradually during ripening and its level of CRGC increased and significantly different from that of control (p<0.05). The texture, hardness, gumminess, and chewiness were significantly increased, but cohesiveness and springiness were not increased in both cheeses during ripening periods (p>0.05). In comparison of the control and sample cheeses, hardness, and springiness were not significantly different, but cohesiveness, gumminess, and chewiness were different (p<0.05). In color measurement, all color values were not different between CRGC and control (p>0.05). However, $L^*$ value decreased, while $a^*$ and $b^*$ values tended to increase significantly (p<0.05). In sensory properties, appearance, aroma, flavor and taste, and texture were significantly increased except buttery and nutty in aroma and sweetness in taste in both cheeses, and were not significantly different between the control and sample cheeses during ripening (p>0.05). Therefore, this study suggests that the quality of cholesterol-removed Gouda cheese is not different from the control cheese.

초임계추출의 천연물 시트러스계의 항산화효과와 향기성분 연구 (On study antioxidant effect and aroma component of natural citrus by SC-$CO_2$ Extraction)

  • 임덕점;전병수;오대희
    • 한국응용과학기술학회지
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    • 제31권2호
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    • pp.285-295
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    • 2014
  • Citrus essential oil were extracted from citron peel of cultivated in Gohong (CCP) using environmentally friendly supercritical carbon dioxide method. Antioxidant activity and aroma composition of the essential oils extracted by the SC-$CO_2$ method were evaluated by comparing with those extracted by organic solvent method. Fatty acid composition, DPPH scavenging, and antioxidant activity of the oils obtained by different extraction condition of SC-$CO_2$ method were investigated and their antioxidant activities were compared with commercially available lavender, eucalyptus and tea tree oils. As the results, linoleic acid was most abundantly found from CCP oil extracted by the SC-$CO_2$ method and cis-11,144-eicosadienoic acids was second abundantly found. Radical scavenging ability of DPPH was 98% when the concentration of CCP oil was 50 mg/mL. This scavenging ability increased with the increase of oil concentration. On the other hand, flavonoids content (84 mg/100g) of the CCP oil extracted by the SC-$CO_2$ method was slightly higher than that (75 mg/100g) by hexane extraction. The results, obtained from CCP oil by GC-MS, indicated that, among 66 components, the content of terpenes was 55.8% and limonene was 27.3%.

고정화 효모를 이용한 발포성 포도주의 휘발성 성분 (Volatile Compounds of Sparkling Wine Using Immobilized Yeast)

  • 최진상;이용수;이건표
    • 한국식품영양과학회지
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    • 제27권1호
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    • pp.24-28
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    • 1998
  • In order to investigate the possibility of using immobilizing yeast cells with the eliminating purpose of the ridding process in sparkling wine production by the traditional method, the changes in chemical components during and after bottle fermentation by immobilizing yeast cells with alginate were tested. The most volatile compounds, excepting some compounds, were not appreciable different in sparkling wines which obtained from various samples compared. After bottle fermentation, sparkling wine fermented with undergoing riddling process, and tested. The results showed that the taste and aroma of the sparkling wine produced with using immobilized cells were very similar to that produced with using free cells.

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頭痛이 主訴인 소아 부비동염 환자의 치험 1例 (A Case of Headache Induced by Paranasal Sinusitis in Child)

  • 남혜정;김윤범
    • 한방안이비인후피부과학회지
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    • 제16권1호
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    • pp.159-167
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    • 2003
  • Paranasal sinusitis has many different kinds of symptoms ; rhinorrea, cough. post nasal drip. headache, etc. In some cases, patients, mostly adults, had no symptom except headache. We treated a 8-year-old child who only complained headache without any other symptoms related in nasal disease. Her symptoms ; headache, nausea, vomiting and general weakness, showed typical type of disease which were due to phlegm. So we diagnosed her headache as a " Headache due to phlegm". Interestingly, her PNS images were diagnosed as bilateral maxillary sinusitis. After one and a half month treatment with herb-med and Aroma oil, the patient got free from all symptoms and her PNS images showed no abnormality.

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Shiraz Vs Syrah Crafting Advertising Campaign, using Sensory Images

  • Choi, Kyoung Sung
    • Asia Marketing Journal
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    • 제18권4호
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    • pp.99-124
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    • 2017
  • Little research on sensory study has been conducted from a marketing perspective and most of sensory studies have been done from a science perspective. Thus, this study examined wine sensory perceptions in the consumers' minds, which is how wine consumers associate grape variety Shiraz/ Syrah by the three different region of origins with specific sensory images. Total 234 questionnaires were collected from online wine community members at restaurants in Korea. The main results show that the most two shared sensory images of Shiraz/ Syrah were 'Dry' and 'Fruity' across the three region of origins. For Barossa Shiraz, the unique images were mainly found in Aroma image category such as 'Chocolate', 'Prune', whereas for Rhone Syrah, the unique images were mainly revealed in Overall image category e.g. 'Deep', 'Fascinating'. Additionally, this study confirmed that Maipo Valley is not recognizable region of origin of Shiraz/ Syrah. This study employed a free choice, Pick Any and conducted correspondence analysis to find out the degree of associations of sensory images and each region of origin.

남해 유자(Citrus junos SIEB ex TANAKA)의 이화학적 품질특성 비교 (Comparison of Physicochemical Properties of Citron (Citrus junos SIEB ex TANAKA) from Three Different Areas of Namhae)

  • 이수정;신정혜;성낙주
    • 농업생명과학연구
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    • 제44권5호
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    • pp.81-90
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    • 2010
  • 남해 유자의 품질 특성을 알아보기 위하여 남해군 설천, 창선 및 이동 지역에서 재배된 개량종 유자의 이화학적 품질 특성을 비교하였다. 유자의 총 중량은 120.51~176.56 g으로 창선 유자가 유의적으로 무거웠으며, 총 중량에 대한 과피의 비율도 가장 높았다. 과피의 표면색은 지역간에 차이가 작았다. 과육의 수분 함량은 시료간에 유의차가 없었으며, 당도는 창선 및 이동 유자가 설천 유자에 비해 유의적으로 높았다. 총 페놀과 플라보노이드 함량은 이동 유자에서 유의적으로 높았다. 유기산은 citric acid 및 malic acid 함량이 창선 유자에서 다소 높았으며, 유리당은 fructose와 glucose는 과피에서, sucrose는 과육에서 함량이 높았다. 유자의 향기성분 중 dl-limonene의 함유 비율이 가장 높았으며, 이동 유자는 57.60%, 설천 및 창선 유자는 각각 71.02%, 73.04%를 차지하였다. 이와같이 남해 지역에서 재배된 유자간에 이화학적 특성의 차이는 토양, 수확시기, 재배 조건 등의 영향이 주된 요인인 것으로 추정된다.

제조방법에 따른 생강나무(Lindera obtusiloba BL.) 잎차의 성분변화 (Changes on the Components of Lindera obtusiloba BL. Leaf Teas by Manufacturing Process)

  • 황경아;김광수;김남우;신승렬
    • 한국식품저장유통학회지
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    • 제10권4호
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    • pp.488-492
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    • 2003
  • 본 연구는 우리나라 전역에 걸쳐 자생하고 있는 생강나무잎을 식품학적 연구의 일환으로 식품으로 이용하고자 여러가지의 방법에 따라 제조한 차의 환원당, 유리당 및 아미노산 등의 변화를 조사하였다. 생강나무잎차의 유리당은 fructose, glucose, sucrose, maltose 4종의 유리당이 동정되었으며, 덖음차에서 유리당 함량이 가장 높았다. 유리 아미노산의 함량은 glutamic acid, aspartic acid, asparagine, glycine 등이 대체로 함량이 높았으며, 특히 덖음처리한 생강나무잎의 유리아미노산 함량이 111.6 mg/100g(덖음차), 101.5 mg/100g(찐후덖음차)로 가장 높았다. 또한 아미노산 유도체는 phosphoserine, $\alpha$-aminobtyric acid, $\beta$-aminobutyric acid, anserine 등은 함량이 높았으며, 제조방법에 따른 뚜렷한 변화는 없었다.

서양 허브식물의 화학성분 (Chemical Composition of Several Herb Plants)

  • 오문헌;황혜정
    • 한국식품과학회지
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    • 제35권1호
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    • pp.1-6
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    • 2003
  • 한국에서 재배된 허브식물(로즈마리, 라벤더, 민트, 세이지, 타임)의 일반 성분, 무기질, 총페놀, 유리당, 지방산 및 향기성분을 분석하였다. 허브 잎의 일반성분을 분석한 결과, 수분함량이 $69.92{\sim}82.10%$으로 가장 높았으며, 조섬유와 회분함량이 지방과 단백질함량보다 높았다. 총페놀 함량은 분광광도법(Follin-Dennis법)으로 측정하여 gallic acid 상당량으로 산출하였으며, 로즈마리와 라벤더가 높았으며 세이지, 타임, 민트 순이었다. 무기성분은 ICP-AES방법으로 나트륨, 칼슘, 망간, 인, 마그네슘, 아연 및 철을 분석하였다. 대체적으로 칼슘함량이 가장 높게 나타났으며, 인, 나트륨, 마그네슘, 철, 아연, 망간의 함량순으로 높았다. 지방산은 GC로 palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid함량을 측정하였다. 대체적으로 포화 지방산인 palmitic acid와 stearic acid 함량보다 불포화지방산인 linoleic acid와 linolenic acid의 함량이 더 높았다. 유리당은 sucrose, glucoes 및 rhamnose를 HPLC로 분리하였으며, 그 함량은 소량이었다. 향기성분은 27종을 확인하였으며, 주요 성분은 ${\beta}-terpinene,\;{\alpha}-thujone,\;{\beta}-phellandrene$, cis-ocimene, ${\beta}-thujone,\;{\beta}-pinene,\;{\alpha}-terpinene$, 1,8-cineole, ${\gamma}-terpinene$, verbenone 및 ${\beta}-ocimene$이었다.