• Title/Summary/Keyword: Granule tea

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Quality and Antioxidant Characteristics of Granule Tea Prepared with Sea Tangle (Laminaria japonica) and Sea Mustard (Undaria pinnatifida) Powder as Affected by Extraction Method (추출방법을 달리한 미역 및 다시마 과립차의 품질 및 항산화 특성)

  • Kwon, Yu-Ri;Youn, Kwang-Sup
    • Food Science and Preservation
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    • v.19 no.4
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    • pp.525-531
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    • 2012
  • This study was conducted to evaluate the quality and anti-oxidant characteristics of different granule tea variants (WSMGT: granule tea prepared from sea mustard hot water extract; ASMGT: granule tea prepared from sea mustard autoclave extract; WSTGT: granule tea prepared from sea tangle hot water extract; and ASTGT: granule tea prepared from sea tangle autoclave extract) from sea tangle and sea mustard powder. The Color of WSTGT showed the highest $L^*$, $b^*$ values, and the lowest $a^*$ value. The water absorption binding agents in ASMGT were higher than those in WSMGT, WSTGT. and ASTGT. Binding agents on water absorption in ASMGT were higher than those of WSMGT, WSTGT, and ASTGT. The alginic acid content of ASMGT was highest. The total polyphenol and total flavonoid contents of ASMGT and ASTGT were highest. The electron donating ability and ferrous ion chelating activity in WSTGT greatly increased compared to those in the other granules tea variants. These results suggest that pressure extraction can be used in functional foods.

Optimization on Pretreatment and Granule Tea Recipe of Polygonatum sibiricum Delar (둥굴레의 전처리 및 과립차 배합비 최적화)

  • 이기동
    • Food Science and Preservation
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    • v.11 no.2
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    • pp.148-153
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    • 2004
  • The organoleptic properties of granule tea was optimized for granulation of Polygonatum sibiricum Delar(Dunggulle) tea for exclusion of scorched smell and increase of consumption. The length of 2 mm was suitable to cutting size of Dunggulle for preparation of the roasted Dunggulle. The optimum sensory conditions for aroma of Dunggulle granule tea showing 7.85 organoleptic score were 80.61% in ratio of Dunggulle extracts to total extracts, 12.77% in content of total extracts and 37.33% in rate of glucose to total sugar. The highest score of overall palatability was 5.96 at 61.11% in rate of Dunggulle extracts to total extracts, 13.79% in content of total extracts, and 60.92% in rate of glucose to total sugar.

Effects of a safflower tea supplement on antioxidative status and bone markers in postmenopausal women

  • Choi, Sung-Hee;Jang, Jeong-Hee;Yoon, Ji-Young;Hahn, Chi-Dong;Choi, Young-Sun;Choi, Sang-Won
    • Nutrition Research and Practice
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    • v.5 no.1
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    • pp.20-27
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    • 2011
  • We conducted this study to examine the effects of safflower seed granular tea containing physiologically active polyphenols on antioxidative activities and bone metabolism. Forty postmenopausal women ages 49 to 64-years were recruited from Daegu and Gyeongbuk and were randomly assigned to either a safflower tea supplement (Saf-tea) group (n=27) or a placebo group (n=13). The Saf-tea group received 20 g of safflower seed granule tea per day containing a 13% ethanol extract of defatted safflower seeds, whereas the placebo group received a similar type of tea that lacked the ethanol extract. No significant changes in nutrient intake for either the placebo or Saf-tea groups were observed before or after the study period, except vitamin A intake increased after 6 months in the Saf-tea group. Dietary phytoestrogen intakes were similar in the Saf-tea group (60.3 mg) and placebo group (52.5 mg). Significant increases in plasma genistein and enterolactone were observed in the Saf-tea group. After 6 months of supplementation, serum levels of antioxidant vitamins such as a-tocopherol and ascorbic acid increased significantly, and TBARS levels decreased in the Saf-tea group compared to the placebo group. Serum osteocalcin levels were reduced (P<0.05) in the Saf-tea group after 6 months, whereas serum osteocalcin did not change in the placebo group. Urinary deoxypyridinoline/creatinine excretion was not different between the two groups at baseline, and did not change in either group after 6 months. Bone mineral density decreased significantly in the placebo group (P<0.01) but not in the supplemented group. It was concluded that polyphenols (72 mg/day), including serotonin derivatives, in the Saf-tea had both antioxidant and potential bone protecting effects in postmenopausal women without liver toxicity.

A Study on the Establishing the Preparation Conditions for Pine Mushroom(Tricholoma matsutake Sing.) Granular Tea (송이버섯을 이용한 과립차 제조 조건 확립에 관한 연구)

  • Park, Mi-Lan;Choi, Soo-Keun;Byun, Gwang-In
    • Journal of the East Asian Society of Dietary Life
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    • v.17 no.5
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    • pp.689-695
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    • 2007
  • The pine mushroom is recognized as being a valuable functional food and is considered a prized mushroom. One of the product development plans for this mushroom is a granular tea. Thus, for this study, the physical properties and sensory qualities evaluation of such a this product were measured. First, we extracted pine mushrooms at various temperatures(50, 60, 70, 80 and $90^{\circ}C$) to make a pine mushroom granular tea. The extraction yield and free amino acid content were greatest in the $50^{\circ}C$ extraction. This extract that was acquired at $50^{\circ}C$ was lyophilized and pulverized to make the granule tea. According to the results, the granular tea made from 4% pine mushroom powder had the best taste, with a Brix value of 1.9% and a pH of 4.12. The L-value of chromaticity was 49.00, the a-value -0.85, and the b-value was 1.28.

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Bioactive compounds and Anti-atherosclerotic Effect of Agastache rugosa (배초향의 생리활성 물질과 항동맥경화 효과)

  • Lee Hyeong-Kyu;Oh Sei-Ryang
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2002.05a
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    • pp.77-81
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    • 2002
  • The scope of the research is investigation of immune-modulating activities of A. rugosa (Baechohyang) extract was preformed through the screening active constituents using in vitro assays and evaluating anti-inflammatory activity and anti-atherosclerotic activity of the extract and active compound (tilianin) in vivo. In addition, various functional foods using the extract and whole plant was developed. The extract showed strong anti-inflammatory activity in carrageenan-induced acute edema mouse model and anti-atherogenic lesion activity in LDLR (low density lipoprotein receptor) deficient mouse model. These activities were thought to be resulted from modulation activity of several pathways of inflammation process. Among the main constituents of Baechohyang, polyunsaturated fatty acids (PUFA), Phytosterols, oleanolic acid and rosmarinic acid showed anticomplement activity, and PUFA, acacetin and tilianin newly showed potent ICAM-1 expression inhibition activity. The processes of extraction, mixing ratio of additives and storage conditions were established for drinks, granule tea, leaf tea, mixed tea and furigake.

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Management of Earthworm Casts using Pesticides and Tea Tree (Camellia oliefera) Extracts in Turfgrass of Golf Courses (골프장에서 차나무류 추출물과 화학 방제제를 이용한 지렁이 분변토 발생 관리)

  • Shin, Chong Chang;Kim, Jong Kyung;Choi, Sung Hwan;Jeon, Byungduk;Lee, Dong Woon
    • Weed & Turfgrass Science
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    • v.5 no.1
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    • pp.35-41
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    • 2016
  • Earthworm cast is a harmful factor which reduces the uniformity of management of turfgrass and play quality in golf courses and playground. This research was conducted to carry out the efficacy of some pesticide (bifenthrin GR + clothianidin GR, ethoprophos GR, imidacloprid SC, picoxystrobin WG, thiophanate-methyl WP) and tee tree (Camellia oliefera) extracts against reducing earthworm cast in golf courses. All tested materials were acted reducing earthworm cast, thiophanate-methyl among them showed the highest effect reducing earthworm casts in golf courses. Tea tree extracts was occurred similar efficacy among tested chemical pesticides. However, pellet type byproduct of tea seed extract and liquid formulation of tea tree extract were better than granule formulation of them. Byproduct of tea seed and tea tree extract can be used for alternative biological management material for reducing earthworm cast in heavily casting occurrence area.

New Magnetic Porcelain Mmaterials using Isotropic Sr-ferrite Granules (등방성 Sr-페라이트 과립을 이용한 새로운 자성도자기 소지)

  • 조태식;정지욱
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.17 no.8
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    • pp.882-887
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    • 2004
  • The new magnetic porcelain materials have been studied by mixing magnetic St-ferrite powders with traditional porcelain materials before forming process. For the maintenance of magnetic characteristics after glaze firing process, the Sr-ferrite grains with the size of 1∼2 ${\mu}{\textrm}{m}$ were agglomerated as the isotropic granules with the size of 0.5∼2 mm. The high characteristics of magnetic porcelain materials were achieved at the following conditions; isotropic Sr-ferrite granules of 30 wt%, granule size of 1.4∼2 mm, and glaze firing temperature of $1250^{\circ}C$ in air The magnetic porcelain materials indicated the high magnetic properties, such as the remanent flux density of 240 G, the intrinsic coercivity of 3910 Oe, and the surface flux density of 178 G. The extraction properties of the magnetic tea cups were high compared to that of the traditional tea cups.

Physical Properties of Granule Prepared by Ginseng Extracts and Selected Forming Agents (다양한 부형제 첨가에 따른 인삼분말 과립차의 물리적 특성)

  • Hur, Sang-Sun;Kim, Il-Chool
    • Journal of the Korean Applied Science and Technology
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    • v.35 no.3
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    • pp.683-694
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    • 2018
  • The ginseng extract was dried and added forming agents using lactose, glucose and arabic gum to enhance convenience and consumer acceptability. As the addition of lactose increased, the absorption of ginseng granule decreased and the solubility tended to increase as the amount of glucose added decreased. The amount of solubilized saponin from the ginseng granules was affected more by the addition amount of ginseng concentrate than by the kind and amount of the forming agents added. Absorption and solubility tended to increase with increasing amount of arabic gum, and there was no significant difference in color change(p<0.05). The optimal mixing ratio of ginseng granules according to addition of forming agents was 10% of ginseng concentrate, 80% of lactose, 5% of glucose and 5% of arabic gum.

Effect the of Sugar on Physical Properties of Ginseng Ted Granules (첨가당류가 인삼차 과립의 물리적 특성에 미치는 영향)

  • 양재원;성현순
    • Journal of Ginseng Research
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    • v.5 no.2
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    • pp.132-138
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    • 1981
  • The effect of sugars, mixing ratio between a sugar and ginseng extract, and moisture content on the physical properties of ginseng tea granules such as water sorption and coagulation phase were investigated The physical Properties of granule were significantly affected by the moisture cogent, a kind of sugars and amount of ginseng extract used in the preparation. The granules contained less than 1.0%moisture and 14.0% of ginseng extract were not affected on the properties, however, it was significantly affected when the moisture content was 1.5 ${\pm}$ 0. 2 % and the ginseng extract was more than 18%. In the preparation with simple sugar, it was significantly decreased water sorption and coagulation phase when lactose used instead of anhydrous glucose. It was also observed that the Properties were decreased as the amount of lactose increased in the preparation of granules with mixing sugars.

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Quality and Antioxidant Activity of Granules Containing Herbal Medicine Extracts (약재 추출물을 첨가한 과립의 품질 특성 및 항산화 효과)

  • Jeong, Se-Hyun;Kim, Jung-Hoan;Oh, Jung-Hoon;Lee, Hae-Jeung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.44 no.9
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    • pp.1311-1316
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    • 2015
  • The aim of this study was to investigate the quality characteristics and antioxidant activities of herbal medicine extract granules for the comparison of commercial powder products such as adlay tea powder and roasted grain powder. The antioxidant activities of samples were estimated using reducing power, 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) free radical scavenging activities, and total polyphenolic contents. Herbal extract granules contained $126.44{\pm}7.26mg/100g$ of total polyphenolic contents. Interestingly, the highest antioxidant activity was found in 5.5% herbal extract granules, which showed DPPH and ABTS free radical scavenging activities of 71.82% and 85.28%, respectively, at 100 mg/mL and reducing power of O.D 1.25. These results suggested that addition of herbal medicine extract had beneficial effects on the functionality of granules without any affecting on its sensory characteristics.