• 제목/요약/키워드: dried tea

검색결과 125건 처리시간 0.022초

기능성 부재료를 첨가한 시판 건국수류의 물성 및 조리 특성 (Physical and Cooking Properties of Commercial Dried Noodles Supplemented with Functional Ingredients)

  • 황성연;강근옥
    • 동아시아식생활학회지
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    • 제24권3호
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    • pp.368-374
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    • 2014
  • We investigated the physical and cooking properties of commercial noodles supplemented with functional ingredients. RVA (rapid visco analyzer), color, water activity, texture and cooking properties were tested. Noodles containing kudzu showed the highest initial gelatinization temperatures, whereas noodle containing kelp displayed the highest peak viscosity and set back. Holding strength and final viscosity were highest in noodles containing mugwort. The L value ($94.89{\pm}0.02$) of wheat flour noodle was the highest. Among functional noodles, L value ($88.65{\pm}0.01$) and a value ($7.42{\pm}0.02$) of cactus noodle were the highest, whereas b value of pumpkin noodle was $40.81{\pm}0.03$, which was higher value than in other noodles. Water activity of cactus noodle was highest (0.455), but the difference was not significant. Cooking properties (including weight, volume, and water absorption) and turbidity of pumpkin noodles showed the highest growth rate. In terms of texture, hardness was highest ($12836.8{\pm}7.1g/cm^2$) in green tea noodles, and cohesiveness and gumminess were highest in kelp and mugwort noodles. Considerig the quality characteristics of noodles supplemented with mulberry leaves, cactus, mugwort, green tea, pumpkin, kelp or kudzu, pumpkin noodles were most stable in terms of gelatinization and cooking properties.

Association Between p16, hMLH1 and E-cadherin Promoter Hypermethylation and Intake of Local Hot Salted Tea and Sun-dried Foods in Kashmiris with Gastric Tumors

  • Mir, Manzoor R.;Shabir, Nadeem;Wani, Khursheed A.;Shaffi, Sheikh;Hussain, Ishraq;Banday, Manzoor A.;Chikan, Naveed A.;Bilal, S.;Aejaz, Sheikh
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권1호
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    • pp.181-186
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    • 2012
  • The aim of this study was to evaluate the methylation status of three important cancer related genes viz. p16, E-cadherin and hMLH1 promoters and to associate the findings with specific dietary habits in Kashmiris, a culturally distinct population in India, with gastric cancer. The study subjects were divided into three age groups viz. 0-30yrs ($1^{st}$), 31-60yrs ($2^{nd}$) and 61-90yrs ($3^{rd}$). A highly significant association between the intake of local hot salted tea in $2^{nd}$ (p=0.001) and $3^{rd}$ (p=0.009) age groups was observed with the promoter hypermethylation of E cadherin. Again a highly significant association between the aberrant methylation of hMLH1 (p=0.000) and p16 (p=0.000) promoters and the intake of local hot salted tea was observed in the $2^{nd}$ age group of gastric cancer patients. The intake of sun-dried food was also significantly associated with the promoter hypermethylation of E cadherin (p=0.003) and p16 (p=0.015) genes in $3^{rd}$ age group. The results of the present study suggest a close association between the aberrant methylation of p16, E-cadherin and hMLH1 promoters and the intake of local hot salted tea and sun-dried foods in Kashmiri population.

대나무 기름의 항균효과 (Antimicrobial Activity of Bamboo(Phyllostachys bambusoides) Essential Oil)

  • 이숙경
    • 한국식품위생안전성학회지
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    • 제15권1호
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    • pp.55-59
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    • 2000
  • Bamboo oil의 천연 보존료로서의 가치를 평가하기 위해 합성 보존료인 BHA와 이미 수입되어 사용되고 있는 천연보존료인 tea tree oil을 비교하기 위하여 disc diffusion법과 broth dilution 법으로 S. aureus와 E. coli대한 항균력을 검토한 결과를 요약하면 다음과 같다. 1. Disc diffusion법으로 S. aureus에 대한 항균력을 조사한 결과 BHA>tea tree oil>bamboo oil 순이었고 E. coli에 대한 항균력은 bamboo oil이 가장 강하게 나타났으며 다음은 BHA>tea tree oil순으로 나타났다. 2. Broth dilution법으로 S. aureus와 E. coli모든 시료 6.0$\mu$l/ ml 이상에서 모두 측정되지 않아 모든 시료에서 동일하게 최소억제농도가 6.0$\mu$l/ ml 이상 필요한 것으로 나타났다. 3. Bamboo oil의 이용 개발 시 경제적 조건은 동일한 항균력을 기대할 때 tea tree oil에 비하여 약 20%정도 저렴하여 경제성이 충분히 있는 것으로 나타났다.

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제조방법에 따른 생강나무(Lindera obtusiloba BL.) 잎차의 향기 성분의 변화 (Changes on the Flavor Components in the Leaf Teas of Lindera obtusiloba BL. by Processing Methods)

  • 황경아;신승렬;김광수
    • 한국식품저장유통학회지
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    • 제12권1호
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    • pp.68-74
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    • 2005
  • 본 연구에서는 우리나라의 전통차의 계승과 새로운 식품의 개발하고자 생강나무의 잎을 이용한 차의 제조방법에 따른 향기성분의 변화를 조사하였다. 재차방법에 따른 향기성분은 덖음차 81종, 찐후덖음차 78종, 자연건조차 88종, 발효차 86종, 찐차 72종 및 인공건조차 89종의 분리할 수 있었다. 생강나무 잎차의 향기성분은 $\beta-piepne$을 비롯한 hydrocarbone류가 45종이 동정되었으며, 가장 많은 종류의 성분이 분포되었다. Alcohol류는 L-linalool, n-octanoal, phenyl acetaldehyde, $(-)-\alpha-terpineol$, elemol, cholest-5-en-3-ol, 등 16종, 2-nitro-2(3-hydroxybuthyl) -clododexanone, 3-(3-butenyl)-2,3-epoxy-cyclohexanone, 2-ethyl-2-propyl- cyclo-hexanone 등 11종의 ketone류가, phenyl acetaldehyde, tetradecanal, 10-undecanal, 4-Bromo-2- methylbutanal 등 8종의 aldehyde류가 동정되었다. 또한 ester류는 methyl 9, 12, 15-octadecatrienate, didodecyl phthalate, 1,2-benzenediccar-baboxy acid-bis(2-ethylhexyl) ester 3종류가 동정되었고, 또한 phenol류는 2,6-bis(1,1-dimethylethyl)-4-methyl-phenol이 동정되었다.

인삼엽차(人蔘葉茶) 제조방법(製造方法)이 품질(品質)에 미치는 영향(影響) (Effects of Processing Methods on the Quality of Ginseng Leaf Tea)

  • 김상달;도재호;오훈일;이송재
    • 한국식품과학회지
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    • 제13권4호
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    • pp.267-272
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    • 1981
  • 인삼엽(人蔘葉)을 이용(利用)하여 여섯가지의 다른 제조공정(製造工程)으로 인삼엽차(人蔘葉茶)를 제조(製造)하여 그 품질(品質)을 조사(調査)한 결과(結果)를 요약(要約)하면 다음과 같다. 1. 완전추출(完全抽出)에 대한 30분(分) 추출물량(抽出物量)의 비(比)는 $30^{\circ}C$ 발효차(醱酵茶)가 가장 컸으며 인공건조차(人工乾燥茶), $25^{\circ}C$ 발효차(醱酵茶) 순(順)으로 감소(減少)하였다. 2. 황색 색상, 오렌지 색상 및 적색 색상의 강도(强度)는 배집차(焙集茶) 가장 크게 나타났으며 $30^{\circ}C$ 발효차(醱酵茶), $25^{\circ}C$발효차(醱酵茶)의 순(順)으로 나타났다. 3. 추출(抽出)된 saponin 함량(含量)은 $30^{\circ}C$ 발효차(醱酵茶)가 다른 방법으로 제조한 차(茶)에 비해 가장 많았으며 또한 관능검사 결과 $30^{\circ}C$ 발효차(醱酵茶)가 가장 적합한 것으로 평가되었다.

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HPLC를 이용한 혼합차의 Hesperidin 정량 (Determination of hesperidin in mixed tea by HPLC)

  • 한샘;목소연;김혜민;이정민;이동구;이숙영;김종기;김선주;이상현
    • 농업과학연구
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    • 제38권2호
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    • pp.295-299
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    • 2011
  • The content of hesperidin in the mixed tea, which was composed of dried orange peel, laurel leaf, mulberry leaf, silver magnolia leaf, oriental melon tap, cassia seed, and licorice root, was determined by high performance liquid chromatography (HPLC). Hesperidin was quantified by a reverse phase column with gradient solvent system (watcr:acetonitrile = 80:20 to 35:65 for 30 min) and UV/VIS detection (280 nm). The How rate was kept constant at 1.0 ml/min. The content of hesperidin in the mixed tea was measured in depending on extraction time 1, 2, 3, and 4 min (29.07, 52.39, 52.45, and 88.35 mg/g, respectively).

유자차 부산물인 유자즙의 분말화 연구 (Drying of Citron Juice from By-product of Citron Tea Manufacturing)

  • 남혜원;현영희
    • 한국식품영양학회지
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    • 제16권4호
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    • pp.334-339
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    • 2003
  • 유자의 부산물을 이용하여 유자과즙의 이용율을 향상하고 편이성을 높임으로써 고품질의 제품을 생산할 수 있는 기반을 마련하고자, 유차자 제조 과정 중 발생하는 유자액에 대한 분말화를 시도하였다. 액체 상태인 유자즙과 이를 분말화한 분말과즙의 주요 성분을 분석한 결과는 다음과 같다. 1. 액상 유자즙의 수분함량은 82.3% 였으며, 분무 건조한 분말과즙이 동결 건조한 분말과즙보다 수분함량이 다소 낮게 나타났으나 cyclodextrin의 농도에 따라서는 큰 차이를 보이지 않았다. 2. 유자 과즙중의 유기산으로 citric acid, malic acid, succinic acid 및 lactic acid 등이 검출되었으며, 건조방법에 따른 유기산의 함량에는 큰 차이가 없었다. 3. 액체과즙을 분말화함으로써 황색도가 현저히 증가하였다. 4. 분말과즙의 열안정성은 상당히 낮은 편이며 분무건조와 동결건조 모두 cyclodextrin 10% 첨가한 군이 15% 첨가군보다 열에 다소 안정하였다. 5. 동결건조과정이 분무 건조 때보다 흡습성이 크며, cyclodextrin에 의한 차이는 거의 없었다. 6. 용해도는 분무건조와 동결건조 모두에서 10분 정도부터 큰 변화가 없는 것으로 조사되었다. 7. 관능평가 결과 분무건조를 한 경우보다 동결건조방법이 기호도가 높게 나타났으며, 이는 동결건조방법에서 상대적으로 쓴맛과 신맛을 덜 느끼고 단맛을 강하게 느끼기 때문으로 분석되었다.

Effects of Soil Selenium Supplementation Level on Selenium Contents of Green Tea Leaves and Milk Vetch

  • Kim, Dae-Jin;Chung Dae-Soo;Bai Sung-Chul C.;Kim, Hyeong-Soo;Lee, Yu-Bang
    • Preventive Nutrition and Food Science
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    • 제12권1호
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    • pp.35-39
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    • 2007
  • This study was conducted to investigate the effects of soil selenium (Se) supplementation level on Se contents of green tea and milk vetch. Four different concentrations of sodium selenite ($Na_2SeO_3$) solutions (0.0, 3.3, 33.0 and 165.0${\mu}g/mL$) were prepared and one liter of each solution was well mixed with 10 kg of compost (cowpea soil) to give four different levels of Se-containing soil: $T_1$, 0; $T_2$, 33; $T_3$, 330; $T_4$, and 1,650${\mu}g$/100 g soil. Green tea plants and milk vetch were individually cultivated in those soils for 60 days. Se contents of freeze-dried green tea leaves were 6.87, 10.40, 12.04, and 20.19 ${\mu}g/g$, respectively; all of which were significantly different (p<0.05) from the others except for $T_2$ and $T_3$. The results showed that Se-contents of green tea leaves were increased 1.5$\sim$2.9 times as the Se level in the soil increased. Regression equation between Se contents in green tea (Y) and soil Se supplementation level (X) was: Y=0.007X+8.857. However, Se contents in the milk vetch were increased significantly (p<0.05) more with the same treatments $T_3$ (74 ${\mu}g/g$) and $T_4$ (187$\mu$g/g) in comparison to those at $T_1$ (5.0 ${\mu}g/g$) and $T_2$ (12.0$\mu$g/g). The increases ranged from approximately between 2.4 to 37.4 times that of the control group. Regression equation between Se contents in milk vetch (Y) and soil Se supplementation level (X) was: Y=0.1063X+15.989. The large difference of Se contents between green tea leaves and milk vetch would be attributed by the difference of protein contents between the 30% or higher protein-content of legumes and 15$\sim$20% protein of shrubs. The present study clearly indicates that green tea leaves and milk vetch can be enriched in selenium by supplementing the soil with Se. Therefore, Se-enriched green tea or milk vetch powder could be utilized as functional foods in Se-fortified green tea drinks or salads, or as food additives to enhance the daily intake of Se.

한국 상용 식품중의 히스타민 함량에 관한 연구 (Analysis on the Contents of Histamine in Korean Foods)

  • 남혜원;이기완;명춘옥;이재성;이양자;홍천수
    • 한국식품조리과학회지
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    • 제12권4호
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    • pp.487-492
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    • 1996
  • The purpose of this report is to present a list of Korean foods containing histamine, that is known to cause food allergy and chronic urticaria. For the measurement of histamine in foods, the application of spectrofluorimeter is used. Among the food groups, sea foods (mackerel, pacific saury, spanish mackerel, anchovy, hair, tail, tuna) contain most high amount of histamine, and the contents of see weeds (sea mustard, laverare) are also high. Milk and milk products (mozzarella cheese, yogurt) contain more histamine than animal meats. Plant foods like cereals, vegetables or fruits contain much less histamine than other food groups, except spinach. The contents of dried sesame, sesame oil, and mugicha, green tea, ginseng tea, mayonnaise, tomato ketchup are relatively high. This paper will be used as a fundamental guideline in planning dietary management of allergy and for the operational plans for the future nutrition education intervention. Because the foods rich in histamine may cause allergy-like syptoms, it may be reqoiled to label the foods containing histamine.

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비누풀 잎 추출물로부터 천연 계면활성제 개발 (Development of a Natural Surfactant from Extracts of Saponaria officinalis L.)

  • 장아름;김효정;김광수;박은경
    • KSBB Journal
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    • 제28권3호
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    • pp.202-207
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    • 2013
  • In this study, saponin content of extract from modified preconditioning process was investigated in Saponaria officinalis L. for cosmetic natural surfactant. Saponin content in steamed leaves from S. officinalis L. was about three times more than that in dried leaves (tea saponin and quillaja saponin). And saponin extracts from steamed leaves was excellently shown in both forming force and forming stability. In emulsion activity, saponin extracts from steamed leaves had a similar level to quillaja saponin and tea saponin. Saponin extracts from steamed leaves in S. officinalis L. showed nontoxic effect below in $1,000{\mu}g/mL$ of concentration and dose-dependent inhibition of NO production. From the experiment, the extracts of S. officinalis L. showed good cosmetic agent.