• Title/Summary/Keyword: sensory process

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A Study on Different Pre-processing of Ligularia fischeri Injeolmi to Standardize Its Processing (전처리 방법을 달리한 곰취 인절미의 제조법 표준화 연구)

  • Choi, So-Rye;Lee, Seung-Joo
    • Journal of the East Asian Society of Dietary Life
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    • v.26 no.4
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    • pp.359-369
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    • 2016
  • In this study Ragwort, which had various and excellent pharmacological activity, was selected as a functional material, and intended to present an optimum condition of Ragwort Injeolmi by the blanching method, commonly used in the field. The general components, antioxidation, and dietary fiber of Ragwort were analyzed, and produceableness of Ragwort added Injeolmi was reviewed through instrumental inspection and sensory evaluation of various adding ratio of lyophilized Ragwort power and Ragwort pre-processed by blanching. It was proved that the SOD-likely active of Ragwort was 45.69%, total poly- phenol content was 12.45 mg, and total flavonoid content was 10.25 mg. The pH of Injeolmi adding Ragwort powder showed an increasing trend in the order of 0%, 1%, 3%, 5%, while that of Injeolmi adding blanching Ragwort showed increasing trend in the order of 0%, 10%, 15%, 20%, and there were significant difference (p<0.001). The soluble solid content of all sample groups showed constant value, and it was understood that no sugar was added in the process. From chromatography measurement result, a-value (redness) of 1% sample group was the lowest, and there were significant differences among sample groups (p<0.001). During 3 days of storage period, total microbial count of Injeolmi showed increasing trend while the storage period was getting longer. From the acceptability test Injeolmi adding blanching Ragwort had shown generally higher value.

Study on the effect of refrigeration storage periods on the quality of frozen croissant dough (크라상생지의 냉동보존기간이 품질에 미치는 영향에 관한 연구)

  • Kim, Jong-Uk
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.15 no.2
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    • pp.57-72
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    • 2004
  • This study is carried out to investigate the effect of any periods in the freezer and the product of value, moisture content, baking loss, specific volume loaf in manufncturing process thereof. The moisture content of the croissant slightly decreased as the periods passed in the freezer. And as passed periods frozen croissant dough dried naturally by the freezer fan. 1. As frozen periods passed croissant dough decreased moisture content and loaf volume. The volume is relation to the molsture content and croissant dough' gluten. Yeast is active but croissant dough is dried so pastry margarine's moisture vaporized little by little. 2. 1 day frozen bench time provided maximum specific loaf volume while croissant shape was unsettled, moisture content was highest. At the same dough croissant hardness had very sofi crust. 3. 1week and 2weets frozen dough had specific loaf volume and hardness with proper crust color. As the proper bench time provided best shape of croissant, color. 4. 4weeks and 8weeks frozen dough had over-al] value of croissant accelerating older product. As the same result, over Sweets frozen periods product were not available for sale and serving to customers. 5. By the sensory evaluation tests, over-all croissant as 1 week, 2weeks were significantly higher quality those than 6. 1day, 4weeks and 8weeks. Textural properties of croissant over 4weeks frozen periods so hard for every panel. According to the study, not croissant dough but also any other frozen dough(ex.Danish, brioche etc.)have to need proper bench time and 1week or 2weeks circulation making method have to given encouragement to practical pastry industry. Add to this study using only for frozen dough yeast instead of using fresh and instant

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Quality Characteristics of Baechu-Kimchi Salted at High Salt Concentration for a Short Time (고농도 염수에서 단시간 절인 배추김치의 품질 특성)

  • Ryu, Jung Pyo;Yang, Ji Hee;Chung, Young Bae;Lee, Sang Il;Han, Eung Soo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.12
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    • pp.1913-1919
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    • 2014
  • Baechu (Brassica campestris var. pekinensis) was salted in 29.6% brine at $30^{\circ}C$ for 4 hours on mobile automatic salting equipment (MASE) with brine circulation four times, and the quality of MASE salted kimchi was compared with that of general factory salted kimchi (control, 12% brine, $10^{\circ}C$, 16 hr) for 5 weeks. Salinity, acidity and number of lactic acid bacteria of MASE kimchi were higher than those of control at 2.5%, 1.17%, and 8.38 log CFU/g, compared to 1.5%, 1.00%, and 2.68 log CFU/g, respectively, whereas reducing sugar content and texture were not significantly different. Overall quality of sensory evaluation was higher than 4.0 in MASE kimchi compared to lower than 4.0 in the control, and taste was significantly higher (P<0.01). The quality of kimchi salted at high salt concentration and high temperature for a short time was higher than those salted at low salt concentration and low temperature for a long time. Higher productivity in the Baechu salting process can be achieved by shortening salting time with MASE.

Quality Characteristics of JungKwa Made with Ginseng by Different Manufacturing Methods (제조방법을 달리한 수삼 정과의 품질 특성)

  • Jo, Eun-Hee;Kim, Myung-Hee
    • Culinary science and hospitality research
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    • v.20 no.3
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    • pp.161-170
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    • 2014
  • Making jungkwa, a traditional Korean snack, is difficult and complicated. In this study, a rice cooker was used to simplify the process of making jungkwa made with ginseng. Comparing ginseng jungkwa cooked in a rice cooker with the control group cooked in a traditional way, their chewiness, browness, glossy and overall preference were similar when cooked for 160 minutes, 175 minutes, 190 minutes, 205 minutes, and 220 minutes. The moisture content of ginseng jungkwa cooked in a rice cooker decreased, while its sugar content increased with increased cooking time. Also, the ginseng jungkwa had lower lightness and higher redness and yellowness as its cooking time got longer. The ginseng jungkwa cooked for 205 minutes was most similar to the one cooked in a traditional way. In the measurement of texture, the ginseng jungkwa had higher hardness with increased cooking time, and, when cooked for 205 minutes, it was most similar to the one cooked in a traditional way in chewiness. The sensory evaluation showed that the one cooked for 205 minutes was most preferred in appearance, smell, taste, texture and overall preference. Based on these results, this study revealed that using a rice cooker can be substituted for the traditional way of making jungkwa.

Comparison of Some Characteristics Relevant to Rice Bread made from Eight Varieties of Endosperm Mutants between Dry and Wet Milling Process (제분방법을 달리하여 제조한 8품종 변이체벼의 쌀빵가공성 비교)

  • Kang, Mi-Young;Han, Ji-Yeun
    • Korean Journal of Food Science and Technology
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    • v.32 no.1
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    • pp.75-81
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    • 2000
  • The processing properties for rice bread were examined using eight kinds of endosperm mutant rice. The varietal differences among eight kinds of endosperm mutant rice having the respective sugar contents and amylose contents were studied. The water absorptions of these eight cultivars were observed to have significant differences among the cultivars, revealing the water absorption ability of Shrunken(shr.) was 61.5%, and that of Punchilmi(fl) was 48.4%. In addition, the experiments using Whachungbyeo, Nampungbyeo and their mutant cultivars showed that the maximum water absorption was tend to be negatively correlated with the amylose content of each rice cultivars. This study also showed that the rice breads made by dry-milling was better in shape, mechanical properties(hardness, springiness, adhesiveness, chewiness) and texture tested using sensory evaluation than that made by wet-milling.

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A Brain-Based Approach to Science Teaching and Learning: A Successive Integration Model of the Structures and Functions of Human Brain and the Affective, Psychomotor, and Cognitive Domains of School Science (뇌 기능에 기초한 과학 교수학습: 뇌기능과 학교 과학의 정의적$\cdot$심체적$\cdot$인지적 영역의 연계적 통합 모형)

  • Lim Chae-Seong
    • Journal of Korean Elementary Science Education
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    • v.24 no.1
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    • pp.86-101
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    • 2005
  • In this study, a brain-basrd model for science teaching and learning was developed based on the natural processes which human acquire knowledge about a natural object or on event, the major domains of science educational objectives of the national curriculum, and the human brain's organizational patterns and functions. In the model, each educational objective domain is related to the brain regions as follows: The affective domain is related to the limbic system, especially amygdala of human brain which is involved in emotions, the psychomotor domain is related to the occipital lobes of human brain which perform visual processing, temporal lobes which perform functions of language generating and understandng, and parietal lobes which receive and process sensory information and execute motor activities of body, and the cognitive domain is related to the frontal and prefrontal lobes which are involved in think-ing, planning, judging, and problem solving. The model is a kind of procedural model which proceed fiom affective domain to psychomotor domain, and to cognitive domain of science educational objective system, and emphasize the order of each step and authentic assessment at each step. The model has both properties of circularity and network of activities. At classrooms, the model can be used as various forms according to subjects and student characteristics. STS themes can be appropriately covered by the model.

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Transient Receptor Potential Cation Channel V1 (TRPV1) Is Degraded by Starvation- and Glucocorticoid-Mediated Autophagy

  • Ahn, Seyoung;Park, Jungyun;An, Inkyung;Jung, Sung Jun;Hwang, Jungwook
    • Molecules and Cells
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    • v.37 no.3
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    • pp.257-263
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    • 2014
  • A mammalian cell renovates itself by autophagy, a process through which cellular components are recycled to produce energy and maintain homeostasis. Recently, the abundance of gap junction proteins was shown to be regulated by autophagy during starvation conditions, suggesting that transmembrane proteins are also regulated by autophagy. Transient receptor potential vanilloid type 1 (TRPV1), an ion channel localized to the plasma membrane and endoplasmic reticulum (ER), is a sensory transducer that is activated by a wide variety of exogenous and endogenous physical and chemical stimuli. Intriguingly, the abundance of cellular TRPV1 can change dynamically under pathological conditions. However, the mechanisms by which the protein levels of TRPV1 are regulated have not yet been explored. Therefore, we investigated the mechanisms of TRPV1 recycling using HeLa cells constitutively expressing TRPV1. Endogenous TRPV1 was degraded in starvation conditions; this degradation was blocked by chloroquine (CLQ), 3MA, or downregulation of Atg7. Interestingly, a glucocorticoid (cortisol) was capable of inducing autophagy in HeLa cells. Cortisol increased cellular conversion of LC3-I to LC-3II, leading autophagy and resulting in TRPV1 degradation, which was similarly inhibited by treatment with CLQ, 3MA, or downregulation of Atg7. Furthermore, cortisol treatment induced the colocalization of GFP-LC3 with endogenous TRPV1. Cumulatively, these observations provide evidence that degradation of TRPV1 is mediated by autophagy, and that this pathway can be enhanced by cortisol.

The Changes of Soluble Sugar Components and Texture during the Processing of Dried Persimmon (건시제조중(乾枾製造中) 감과실(果實)의 당조성(糖組成)의 변화(變化) 및 물성(物性))

  • Moon, Kwang-Deok;Sohn, Tae-Hwa
    • Journal of the Korean Society of Food Culture
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    • v.3 no.4
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    • pp.385-390
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    • 1988
  • This study was conducted to determine the interconversion of sugars in persimmon during the drying process and the textural properties of raw and dried persimmons using the changes of some chemical constituents, the analysis of sugar component, and the measurement of texture. Five varieties of persimmons were used in this experimment. As the drying proceeded, content of acetaldehyde and alcohol increased while soluble tannin content rapidly decreased. The rapid changes of these component obserbed in kyongsan Bansi and Hiratanenashi. Soluble sugars detected in raw persimmons were mainly glucose, fructose and sucrose. The content of sucrose was rapidly decreased in early stage of drying, while glucose and fructose were rapidly increased. The nearly same amount of glucose and fructose presented in the dried persimmon although there were some differences among varieties tested. The major component of white powder developed on the surface of dried persimmon was almost glucose. The texture profile analysis of the raw and dried persimmons was made with texturemeter and the quality of the dried persimmons was sensory evaluation method. Hiratanenashi and Sagoksi were determined as the suitable varieties in the processing of dried persimmons, but the varieties of Changdungyee and Namyang Susi were not suitable.

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Development of Pretreatment and Mixed Culture Processes for Plant Originated Lactic Acid to Produce a Functional Lactic acid Beverage (대두 전처리 공정 및 식물 유래 유산균 혼합 배양에 의한 기능성 유산균 음료 생산기술 개발)

  • Cho, Eun-Kyung;Cho, Hyung-Yong;Kim, Byeong-Cheol;Shin, Hae-Hun;Cho, Seok-Cheol;Kook, Moo-Chang;Pyun, Yu-Ryang
    • The Korean Journal of Food And Nutrition
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    • v.24 no.1
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    • pp.117-123
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    • 2011
  • This study was conducted to establish process conditions for plant-originated lactic acid production using a mixed culture of plant originated lactic acid bacteria, Lactobacillus sakei B2-16, and Lactobacillus plantarum P23, which were isolated from kimchi, and Bacillus subtilis, which was TP6 isolated from Denjang. Soybean medium was pretreated for 10 minutes at $110^{\circ}C$ and hydrolyzed with 0.2%(w/v) cellulase at $55\sim60^{\circ}C$ for at least 2 hrs. The quality of the final fermentation product was influenced by the inoculation ratio of the Lactobacillus sakei B2-16, Lactobacillus plantarum P23, and Bacillus subtilis TP6. The optimum microorganism inoculation ratio was 1:0.7:0.3, Lactobacillus sakei B2-16: Lactobacillus plantarum P23: Bacillus subtilis TP6, respectively. The sensory characteristics of the product were a refreshing sourness and a soft flavor.

Optimization for the Preparation of Jeung-Pyun, with Added Paecilomyces japonica Powder, Using a Response Surface Methodology (반응표면분석법에 의한 동충하초 첨가 증편 제조의 최적화)

  • 박금순;윤광섭;황성희;조현정;김정숙
    • Korean journal of food and cookery science
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    • v.19 no.4
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    • pp.504-510
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    • 2003
  • To optimize the preparation process of Jeung-Pyun, an experiment was derived, using a central composite design, to fmd the optimal mixing conditions. The addition of Paecilomyces japonica powder, the volume of Tak-Ju and the second fermentation time were independent variables, with the pH, volume, color, sensory and texture properties of the Jeung-Pyun selected as response variables. As the Paecilomyces japonica powder and fermentation time were increased, the b values and volume after the second fermentation also increased. The color of the Jeung-Pyun became deeper with increases in the Paecilomyces japonica powder and fermentation time, and was deepest on the addition of 30% Tak-Ju. The pH increased with increasing fermentation time of the Jeung-Pyun, and on the addition of 3% Paecilomyces japonica rapidly increased more than with the other groups. The optimal mixing conditions for the best quality Jeung-Pyun, with restricted conditions above a b value of 3, a color intensity above 3, and a volume of 40mQ and a pH of 4.02-4.04 after the second fermentation, were 4.0%, 20% and 45 mins for the Paecilomyces japonica powder, Tak-Ju and second fermentation time, respectively.