• Title/Summary/Keyword: odor and taste value

Search Result 119, Processing Time 0.024 seconds

A Study on Setting the Shelf Life of Commercial Korean Traditional Cookies: Rice Yoogwa, Sesame Yoogwa and Yackwa (일부 시판되고 있는 한과류 중 쌀유과, 깨유과 및 약과의 적정 유통기한 설정에 관한 연구)

  • 김은미;김현숙
    • Korean journal of food and cookery science
    • /
    • v.17 no.3
    • /
    • pp.229-236
    • /
    • 2001
  • This study was conducted in order to set the shelf life of Rice Yoogwa, Sesame Yoogwa and Yackwa to marketed in department store. It was investigated acid value, peroxide value, microbiological test and sensory evaluation for 50 days. Acid value of Rice Yoogwa, Sesame Yoogwa and Yackwa were not significantly different during storage period. Peroxide values of Rice Yoogwa and Yackwa were significantly increased after 30 days of storage but there was no different in Sesame Yoogwa. Fungus were appeared Sesame Yoogwa of A company, Rice Yoogwa and Yackwa of B company after 40 days of storage. In sensory evaluation, odor, taste, texture and overall acceptability after 40 days were significantly lower than 10 days of storage and rancid odor was gradually increased with preservation period in all materials. Correlation of acid value and peroxide value were positive throughout whole preservation period and rancid odor was increased. Odor, taste, texture and overall acceptability of Yoogwa and Yackwa were negative correlation with preservation period. In view of the above results, it came to the conclusion that shelf life of Yoogwa and Yackwa was 40 days.

  • PDF

Optimal Conditions of Reaction Flavor for Synthesis of Crab-like Flavorant from Snow Crab Cooker Effluent (홍게 자숙액으로부터 게향 제조를 위한 반응향의 최적화)

  • Ahn, Jun-Suck;Jeong, Eun-Jeong;Cho, Woo-Jin;Cha, Yong-Jun
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.43 no.1
    • /
    • pp.128-134
    • /
    • 2014
  • To develop a crab-like flavorant from snow crab cooker effluent (SCCE, $20^{\circ}Brix$), optimal reaction conditions were determined using response surface methodology (RSM) combined with reaction flavoring technology (RFT). Using five variables (proline, glycine, arginine, methionine, fructose), RSM based on a five-level central composite design was applied to evaluate sensory acceptance (odor, taste, and overall acceptance) as dependent variables. A model equation obtained from RSM showed 0.88 of R-square for odor, 0.90 for taste, and 0.95 for overall acceptance with 0.07 lack of fit in overall acceptance (P<0.05). Odor score (predicted value) was 7.21 in the saddle point. Optimal flavoring conditions for making a crab-like flavorant were as follows: addition of 0.29 g of proline, 0.63 g of glycine, 0.61 g of arginine, 0.02 g of methionine, and 1.07 g% (w/v) of fructose into SCCE with RFT (90 min at $130^{\circ}C$). Odor score obtained under optimal conditions was 7.56, which was higher than the predicted value.

Identification of Aroma-Active Compounds in Korean Salt-Fermentaed Fishes by Aroma Extract Dilution Analysis 1. Aroma-Active Components in Salt-Fermented Anchovy on the Market (AEDA법에 의한 한국산 젓갈류의 Aroma-Active 성분의 구명 1. 시판 멸치젓의 Aroma-Active 성분)

  • Cha, Yong-Jun;Kim, Hun;Jang, Sung-Min;Park, Jee-Young
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.28 no.2
    • /
    • pp.312-318
    • /
    • 1999
  • Volatile compounds in salt fermented anchovy on the market were analyzed by vacuum simulta neous distillation solvent extraction/gas chromatography/mass spectrometry/olfactometry(V SDE/ GC/MS/O) and aroma extract dilution anlaysis(AEDA). Predominant odorants(Log3FD$\geq$8) in sample were ethyl methylbutanoate(candy like/sweet) and 2 ethyl 3,5 dimethylpyrazine(nutty/baked potato like). Besides these compounds, 6 odorants such as ethyl 3 methylbutanoate(sweet/floral/ candy like), 3 methylbutanal(dark chocolate like), (Z) 4 heptenal(rancid/fish like), (methylthio) propanal(soy sauce /baked potato like), (E,Z) 2,6 nonadienal(melon /cucumber like) and (E,E) 2,4 decadienal(fatty/cooked soybean like) were potent in odor value of salt fermented anchovy. Seven amino acids having high taste value in sample were glutamic acid, aspartic acid(sour and umami taste), lysine, alanine(sweet), histidine, valine, and methionine(bitter).

  • PDF

Quality Characteristics of Allium victorialis Mul-kimchi during Fermentation (저장기간에 따른 산마늘 물김치의 품질특성)

  • Park, Geum-Soon;Kim, Gui-Sun
    • Korean journal of food and cookery science
    • /
    • v.24 no.6
    • /
    • pp.829-836
    • /
    • 2008
  • This study was carried out to investigate the properties of mul-kimchi made with allium victorialis. Chemical and sensory characteristics were determined during fermentation at $4^{\circ}C$ for 4 weeks. The pH decreased with an increase in total acidity. Mul-kinchi showed salinity properties ranging within $1.0{\sim}1.5%$ during fermentation. Hunter's color L, a-values were gradually decreased, but b-value was increased. In the texture, hardness and strength decreased as the aging time increased. The numbers of total- and lactic bacteria cells rapidly increased up to the second week, and this slowly increased thereafter. Sensory evaluation of mul-kinchi was favored for appearance, flavor, taste, texture and overall acceptability during the second week. Sensory properties of well ripened odor and sour taste negatively correlated with physicochemical properties of pH and hardness. Sour odor and sour taste were positively correlated with acidity and total- and lactic acid bacteria.

이제마(李濟馬)가 제시한 체질별(體質別) 약물분류(藥物分類) 원칙(原則)에 대한 연구(硏究)

  • Im Jin-Seok
    • Journal of Korean Medical classics
    • /
    • v.13 no.1
    • /
    • pp.345-360
    • /
    • 2000
  • I In the rearch of the principle of herb classification based on constitution I have recognised Lee Jae Ma(李濟馬)'s medical thought on the herb. He had believed that herb must be used when needed, also had opposed taking overdose of medicine. And he had prescribed to a patient based on constitution. The results were summerized as follow; 1. In the classification of herb according to constitution, Although Gimilon(氣味論) that empasized in the herbal medicine have had reference value but cannot be absolute classific standard. The medicinal portion of herb was not significant. And through research the past prescription that were qouted by Lee Jae Ma cannot find a meaningful result. 2. Lee Jae Ma denied the tradtional GuiKyung(歸經) theory, and classified into Iung(肺), spleen(脾), liver(肝), kidney(腎). And when he gave medical teatment, he has used the methods of the supplement to weakned organ. 3. On the principle of herb classification based on constitution, Lee Jae Ma had presented general rule that are fragrance(馨), odor(臭), liquid(液), taste(味). Although it had suitable tendency but cannot complitely coinside with the actual. Therefore I interpreted fragrance(馨), odor(臭), liquid(液), taste(味) into the symbol that represent the chief effect. On these conception it's necessary more study.

  • PDF

Development of Granular Tea by Using Astringent Persimmon and Persimmon Leaves (떫은 감과 감잎을 이용한 과립차 개발에 관한 연구)

  • Byun, Gwang-In;Kwon, Yong-Ju;Park, Mi-Lan
    • Culinary science and hospitality research
    • /
    • v.14 no.2
    • /
    • pp.273-285
    • /
    • 2008
  • The purpose of this study was to find appropriate processing condition of astringent persimmon and persimmon leaf granular tea. Under the condition of 4 hour extraction and $50^{\circ}brix$, extraction yield and concentrating of astringent persimmon were the greatest. Under the condition of 2 hour extraction and $7^{\circ}brix$, extraction yield and concentrating of persimmon leaf were the greatest. The optimum condition of granular tea with astringent persimmon and persimmon leaf added was the best in astringent persimmon concentrate of 16% and persimmon leaf concentrate of 4%. It had the best taste after the condition in a brix value of 16.15% and a pH of 5.57. The L-value of chromaticity was -79.13, a-value 2.27, and b-value 2.41. In the sensory properties correlation analysis of astringent persimmon and persimmon leaf granular tea, sweet taste, color acceptability, odor acceptability and taste accept-ability were positively significant correlation with most sensory properties. However, astringent taste was no significant correlation with sensory acceptability. Bitter taste and after taste were negatively significant correlation with most sensory properties.

  • PDF

A Study on the Quality Characteristics of Makpyeon Prepared with Dry Milled Rice Powder (건식 쌀가루를 이용한 막편의 품질특성)

  • Jo, Yun Ju;Yoon, Hye Hyun
    • Journal of the Korean Society of Food Culture
    • /
    • v.31 no.3
    • /
    • pp.235-242
    • /
    • 2016
  • The purpose of this study was to investigate the quality characteristics of makpyeon prepared with dry milled rice powder. The makpyeon samples prepared with dry milled rice powder and various amount makgeolli (0% (CON), 25% (M25), 50% (M50), 75% (M75), 100% (M100)), and analyzed for moisture content, pH, Hunter's color value, TPA and sensory evaluation. The moisture content did not showed significant difference among makpyeon samples. The L-value, a-value resulted in that CON showed the highest and decreased with the amount of makgeolli. The b-value of makpyeon samples showed that CON was the lowest and increased with the amount of makgeolli. TPA resulted in that M100 showed the highest hardness and the lowest adhesiveness, cohesiveness. Chewiness and gumminess of makpyeon samples were higher than those of CON. Based on quantitative descriptive analysis, the score of brightness, moistness, particle size and gloss of showed higher in CON that in makpyeon samples, firmness increased with the amount of makgeolli. Flavor attributes of liquor odor, sour odor, fermentation odor of makpyeon was stronger in makpyeon samples that in CON with the amount of makgeolli. Acceptance test resulted in makpyeon made with CON, 100% of makgeolli (M100) showed the significantly highest score in taste and overall acceptance.

Quality Characteristics of Sanghwabyung with Wheat Germ (밀 배아를 이용한 상화병의 품질 특성)

  • Choi, Bong-Soon
    • Culinary science and hospitality research
    • /
    • v.15 no.3
    • /
    • pp.262-270
    • /
    • 2009
  • This study investigates the difference of sanghwabyung by adding different ratios of wheat germ. Aw, color value SEM and the sensory characteristics were analyzed and compared by SAS package. Aw of sanghwabyung was decreased with the increment of the additional content of wheat germ. L of sanghwabyung showed the lower values, a increased and b decreased, as the content of wheat germ increased. In the test of sensory characteristics, sanghwabyung with 7% wheat germ had the highest score in crust color, crumb color and wheat germ flavor. In the test of consumers' preference, sanghwabyung with 5% wheat germ had the highest score in odor, taste, and overall acceptability.

  • PDF

Roasting Conditions for Improvement of Viscosity and Sensory Properties of Sea Tangle Extracts (다시마 추출액의 점성과 향미 개선을 위한 볶음처리 조건)

  • 박명한
    • The Korean Journal of Food And Nutrition
    • /
    • v.12 no.5
    • /
    • pp.484-489
    • /
    • 1999
  • Rosting conditions for improvement of viscosity and sensory properties of sea tangle extracts were investigated. The supernatant % solid yield and crude protein yield were increased by increasing of roasting temperature and times. The highest contents of algin was obtained in roasting temperature of 175$^{\circ}C$ ash contents were increased by roasting temperature increasing. Viscosities of sea tangle extract were significantly decreased by increasing of roasting temperature and time upto 175$^{\circ}C$ and 10 mins more than further roasting conditions. The pH of sea tangle extracts slightly decreased from 5.94 to 5.83 in the roasting of 15$0^{\circ}C$ however at temperature more than 175$^{\circ}C$ its pH was increased by increasing of temperature and time. According to increase of roasting temperature and time Lightness (L value) were significantly decreased and redness (a value) and yellowness (b value) reached the highest value in the roasting of 20$0^{\circ}C$ 15 min. or 175$^{\circ}C$ 30 min and after that its value were decreased. The odor characteristics showed that sea tangle extract prepared by roasting of 175$^{\circ}C$ 10mins was slightly reduced in intensity of savory and seaweed taste but significantly low in intensity of nauseous taste and high in intensity of roasted taste and accetability. Overall data suggested 175$^{\circ}C$ 10min was the most effective roasting conditions for improvement of viscosity and sensory properties of sea tangle extract.

  • PDF

Preparation and Quality Characterization of Garlic Gochujang with Alaska Pollock Therage chalcogramma Roe (명란 마늘 고추장의 제조 및 품질 특성)

  • Hwang, Ji-Young;Jeong, Hyo-Pin;Jang, Jong-Soo;Jang, Suck-Jun;Kim, Jin-Soo
    • Korean Journal of Fisheries and Aquatic Sciences
    • /
    • v.50 no.3
    • /
    • pp.235-242
    • /
    • 2017
  • This study was conducted to determine the optimum amount of dried Alaska Pollock Therage chalcogramma roe (D-AP-R) for preparing garlic gochujang with D-AP-R. We investigated the optimal preparation of garlic gochujang with D-AP-R by proximate composition, taste, color, and odor measurements and sensory evaluation. The moisture, ash contents and water activity of garlic gochujang with D-AP-R decreased as the amount of D-AP-R increased, whereas other components, such as crude protein and lipid contents, taste value, yellowness of Hunter color, and odor intensity, increased as D-AP-R increased. According to the sensory evaluation results, garlic gochujangs with 10 and 15% D-AP-R were superior to garlic gochujang without D-AP-R (control) in terms of taste and overall acceptance but inferior in terms of fish odor. However, there was no difference in the sensual color of garlic gochujang with versus without D-AP-R. These results suggest that high quality garlic gochujang can be prepared by adding 10% D-AP-R. The total amino acid content of garlic gochujang with 10% D-AP-R was 11.81 mg/100 g, which was higher than that of the control (9.05 mg/100 g). The cholesterol content of garlic gochujang with 10% D-AP-R was 16.1 mg/100 g, which is below the acceptable daily cholesterol intake (300 mg/day).