• Title/Summary/Keyword: taste-properties

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A Herbological study on the plants of Fagales in Korea (한국산(韓國産) 각두목(殼斗目)식물에 관한 본초학적(本草學的) 연구(硏究))

  • Kim, Bong-Kyoo;Jeong, Jong-Kil
    • The Korea Journal of Herbology
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    • v.21 no.2
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    • pp.27-36
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    • 2006
  • Objectives : The plans can be used for medicinal purposes among Fagales in korea and examined their effects and distributions. Methods : The examined herbalogical books and research papers which published at home and abroad. Results : 1. Quercus genus is main kind enough that it has 32 species among 94 species in the Fagales, of which medicinal plants are 8 species. 2. Cortex is the main medicinal parts of medicinal plants in the Fagales which is used in 12 species. 3. According to nature and flavor of medicinal plants in the Fagales, they were classified into balance 23 species, cool 8 and warm 6; rough taste 25, bitter taste 21 and sweet taste 10 in the order. 4. According to meridian propism of medicinal plants in the Fagales, they were classified into large intestine meridian 11 species, spleen meridian 9, lung meridian 8, liver meridian 8 and stomach meridian 6 in the order. 5. According to the properties and principal curative action, they were classified into drugs for antifebrile and detoxicant 16 species, drugs for hemostasis 14, drugs for astriction 11, drugs to relieve cough 8 in the order. 6. It was noticed that every medicinal plant in the Fagales is nontoxic. Conclusion : There were totaled to 9 genera and 94 species in Fagales in Korea and among them medicinal plants are 6 genera, 22 species, some 23% in total.

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Effect of Aging Process and Time on Physicochemical and Sensory Evaluation of Raw Beef Top Round and Shank Muscles Using an Electronic Tongue

  • Kim, Ji-Han;Kim, Dong-Han;Ji, Da-som;Lee, Hyun-Jin;Yoon, Dong-Kyu;Lee, Chi-Ho
    • Food Science of Animal Resources
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    • v.37 no.6
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    • pp.823-832
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    • 2017
  • The objective of this study was to determine the effect of aging method (dry or wet) and time (20 d or 40 d) on physical, chemical, and sensory properties of two different muscles (top round and shank) from steers (n=12) using an electronic tongue (ET). Moisture content was not affected by muscle types and aging method (p>0.05). Shear force of dry aged beef was significantly decreased compared to that of wet aged beef. Most fatty acids of dry aged beef were significantly lower than those of wet aged beef. Dry aged shank muscles had more abundant free amino acids than top round muscles. Dry-aging process enhanced tastes such as umami and saltiness compared to wet-aging process according to ET results. Dry-aging process could enhance the instrumental tenderness and umami taste of beef. In addition, the taste of shank muscle was more affected by dry-aging process than that of round muscle.

A herbalogical study on the plants of Violaceae in Korea (한국산 제비꽃과 식물에 관한 본초학적 연구)

  • Lee, Soon-In;Jeong, Jong-Gil
    • The Korea Journal of Herbology
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    • v.27 no.5
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    • pp.77-83
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    • 2012
  • Objective : For the purpose of developing Korean herbalogy of the plants to Violaceae in Korea, the literatures of the successive generations have been thoroughly investigated to prepare this article. Methods : The examined herbalogical books and research paper which published at home and abroad. Results : 1. Violaceae plants (raised in Korea) are devided into 1 classes with 57 species. Among them, 14 species in 1 classes were found serviceable, which indicates 32 % of all Violaceae plants. 2. The herb is main medicinal part if medicinal plants in the Violaceae, which is used in 14 species. 3. According to the nature and flavor of medicinal plants in the Violaceae, they were classified into cold 8 species, and cool 7; bitter taste 8; acrid taste and little bitter taste 6 in the order. 4. According to the meridian propism of medicinal plants in the Violaceae, they were classified into liver meridian 6 species, heart meridian 3 species in the order. 5. According to the properties and principal curative action, they were classified into drugs for clearing heat, removing toxins 12 species; drugs for alleviate edema 7, and drugs for arresting bleeding 6 in the order. 6. There were no toxic species in the Violaceae family. Conclusion : There were totaled to 1 genera and 57 species in Violaceae in Korea and among them medicinal plants are 1genera, 14 species, some 32% in total.

Quality Characteristics of Duck Stock by the Addition of Malic Acid (사과산 첨가량에 따른 오리 육수의 품질 특성)

  • Kim, Ki-Bbeum;Kim, Dong-Suk;Song, Jung-Sik;Choi, Soo-Keun
    • Journal of the East Asian Society of Dietary Life
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    • v.21 no.2
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    • pp.263-271
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    • 2011
  • This study was performed to develop duck stock using various nutritional elements in duck bone by the addition of malic acid (0.5%, 1.0%, 1.5% and 2.0%). Moisture contents, b value, and pH were decreased, while the L value, a value, salinity, and sugar contents were increased by increasing the ratio of malic acid. Thirty four types of free amino acid were detected, and the highest individual amino acid content was 1.0%. In a test for different attributes, malic acid content significantly affected properties including color intensity, transparency, acid flavor, savory flavor, acid taste, and savory taste. In the acceptance test, a malic content of 1.0% was preferred for appearance, taste, and overall quality. The optimal malic acid content for maximizing the overall quality of duck stock was 1.0%.

Physical Properties and Preference of a Steamed Sweet Potato Slab after Mild Hot Air Drying (온풍건조 조건에 따른 증절간 고구마의 물리적 특성과 기호도)

  • Shin, Mi-Young;Lee, Won-Young
    • Korean journal of food and cookery science
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    • v.27 no.2
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    • pp.73-81
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    • 2011
  • Two kinds of steamed sweet potatoes were dried with mild hot air to improve quality, convenience and preference as a snack. Steamed sweet potatoes were dried at temperatures ranging from 35 to $65^{\circ}C$ for 12 hr, and moisture contents, colors, texture, and taste were evaluated. The lowest moisture content was 0.25% at $65^{\circ}C$. Color values (L, a, b and ${\Delta}E$) decreased with increasing drying temperature and drying time in both chestnut-sweet potatoes and pumpkin-sweet potatoes. Reducing sugars and soluble solids increased quickly at high drying temperatures. The highest hardness value for chestnut-sweet potatoes was $26.31\;kg_f /cm^2$when they were dried at $65^{\circ}C$ for 12 hrs. Springiness and cohesiveness were higher than those in chestnut-sweet potatoes. The highest taste score was for a dried chestnut-sweet potatoes at $55^{\circ}C$ for 6 hr and a dried pumpkin-sweet potatoes at 45 or $55^{\circ}C$ for 6 hr.

Rheological Properties of White Bread Supplemented with Ligularia stenocephala Leaf Powder and Its Sensory Characteristics according to Survey Panel Members (곤달비 분말이 첨가된 식빵의 물성 및 패널요원에 따른 관능적 특성)

  • Jung In-Chang
    • The Korean Journal of Food And Nutrition
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    • v.19 no.2
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    • pp.207-218
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    • 2006
  • This study was designed to investigate the possible utilization of Ligularia stenocephala as a source of functional ingredients in white bread. In terms of color values, as more Ligularia stenocephala leaf powder was added, 'lightness,' 'redness,' and 'yellowness' decreased in the crust, while in the bread crumb 'lightness' and 'yellowness' decreased, but 'redness' increased. When 5.0%, 7.5%, or 10.0% Ligularia stenocephala leaf powder was substituted for an equivalent amount of strong flour, the ratio of the volume and specific volume of white bread decreased while its weight increased. In the texture measurements for the white breads, the hardness decreased slightly with the addition of 2.5% Ligularia stenocephala leaf powder, but increased with the addition of 5.0%, 7.5%, or 10.0% Ligularia stenocephala leaf powder. The addition of the Ligularia stenocephala leaf powder also increased the springiness and gumminess of the white bread. The highest sensory scores for color, flavor, taste, texture, and overall acceptance for both the student group and the baker group were obtained from white bread with 5.0% Ligularia stenocephala leaf powder. The highest sensory scores for the housewife group for taste, texture, and overall acceptance were obtained from control bread. Through the results of these experiments, we conclude that the highest quantity of Ligularia stenocephala leaf powder content should be no more than 5.0% when making bread with added Ligularia stenocephala leaf powder.

Changes in Microbiological and Chemical Properties of Natural Water with the Storage Time and Temperature (시판 먹는 샘물의 저장 기간 및 온도에 따른 세균학적 및 화학적 품질 변화)

  • 박신인;이왕규;조윤정
    • Journal of Food Hygiene and Safety
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    • v.12 no.1
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    • pp.55-62
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    • 1997
  • This study was carried out to investigate the microbiological and chemical properties of natural water during storage. The water samples were taken at the time of purchase and the opened bottles and unopened bottles stored at the temperature of 4$^{\circ}C$, 18$^{\circ}C$, and 3$0^{\circ}C$. The bacterial content normally rose to 2.06$\times$102 CFU/$m\ell$ for the unopened bottles and 2.91$\times$102 CFU/$m\ell$ for the opened bottles after 2 weeks of storage, and 1.21$\times$102 CFU/$m\ell$ and 2.64$\times$102, respectively, after 24 weeks of storage. The number of viable cells of bacteria peaked more rapidly at the storage temperature of 3$0^{\circ}C$ than 18$^{\circ}C$. But the total samples were found to be negative for coliforms test during the study period. The average range of pH value was from 7.39 to 7.76. The results showed that the nitrates and chlorides satisfied the Korea Drinking Water Quality Standards during the storage period of 24 weeks. However, the undesirable changes of the taste and odor were detected within 2 weeks and 3 weeks, respectively.

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Optimization on Organoleptic Properties of Mushroom (Agaricus bisporus) Pickles using Response Surface Methodology (반응표면법을 이용한 양송이버섯 피클의 관능적 특성 최적화)

  • 김옥선;주나미
    • Korean journal of food and cookery science
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    • v.20 no.2
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    • pp.158-163
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    • 2004
  • The purpose of this study was to determine the organoleptic properties of mushroom pickles made at various compounding ratios according to central composite design for optimum organoleptic properties. In this study, various kinds of mushroom pickle were made at different compounding ratios of vinegar, sugar and salt-critical ingredients of the pickle recipe and the products were presented to an expert panel, who graded the subjects in 7 degrees for 5 items: color, flavor, hardness, taste and overall quality. As a result of sensory quality, mushroom pickles with 300g of vinegar, 150g of sugar and 60g of salt achieved the highest grade. Meanwhile, the results of Response Surface Methodology were different from the sensory quality results, showing that the optimum mixing conditions for overall organoleptic properties of mushroom pickle were 279.58g of vinegar, 179.34g of sugar and 59.09g of salt. (Ed- based on this conflict in results, I suggest that you make a final recommendation, of either the first, the second, or perhaps an intermediate, ratio)

Optimization for Roast Flavour Formation of Platycodon grandiflorum Tea (도라지차의 구수한 향미 발현 최적화)

  • 이기동;주길재;권중호
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.29 no.5
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    • pp.752-757
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    • 2000
  • Response surface methodology was used to optimized soaking and roasting conditions and monitor organoleptic properties of roasted Platycodon grandiflorum tea. In soaking and roasting processes based on the central composite design with variations in threonine/sucrose concentration for soaking of Platycodon grandiflorum, roasting temperature and roasting time, coefficients of determination ($R^2$) of the models were above 0.86(p<0.05) in organoleptic properties. The maximum conditions predicted for each corresponding organoleptic properties of roasted Platycodon grandiflorum tea were 1.64% threonine concentration, 137.83$^{\circ}C$ and 27.76 min in aroma, 1.46% threonine concentration, 136.1$0^{\circ}C$ and 25.19 min in taste, and 1.39% threonine concentration, 136.44$^{\circ}C$ and 29.05 min in overall flavour. The optimum condition ranges for organoleptic properties of roasted Platycodon grandiflorum tea were soaking in 1.40~1.64% threonine concentration, and roasting at 136.10~137.9$0^{\circ}C$ for 25.19~29.00 min.

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Physicochemical and Sensory Properties of Soup Added with Stachys sieboldii Miq Root Powder (초석잠 뿌리 분말을 첨가한 수프의 이화학적 및 관능적 품질 특성)

  • Tae, Mi Hwa;Kim, Kyoung-Hee;Yook, Hong-Sun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.4
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    • pp.557-561
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    • 2016
  • The study investigated the physicochemical and sensory properties of soup prepared with 0, 10, 20, and 30% Stachys sieboldii Miq root powder. Moisture and viscosity were reduced with increasing content of Stachys sieboldii Miq root powder. The pH decreased and acidity increased with increasing content of Stachys sieboldii Miq root powder. The L value decreased while a and b values increased with increasing Stachys sieboldii Miq root powder concentration. In the sensory evaluation, color intensity increased while viscosity and greasy taste decreased with increasing content of Stachys sieboldii Miq root powder. Soup with 20% Stachys sieboldii Miq root powder had acceptable sensory properties, such as appearance, flavor, taste, texture, and overall acceptability.