• Title/Summary/Keyword: Crude carbohydrate

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Changes in approximate composition, antioxidant activity and melatonin content of rapeseed during germination (발아기간에 따른 유채종자의 일반성분 조성, 항산화능 및 멜라토닌 함량의 변화)

  • Kim, Seok Joong
    • Food Science and Preservation
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    • v.23 no.6
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    • pp.839-847
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    • 2016
  • The changes of approximate composition, antioxidant activity and melatonin content in rapeseed were monitored during 10 days germination to choose the optimum sprouts with beneficial functionalities. The moisture content of seeds increased from 3.23% to 17.50% during 10 days germination period, while ash content was similar (4.03~4.91%). The fat content was reduced from 38.18% to 22.65%, however, protein content increased from 21.43% to 26.72%. The carbohydrate content increased from 32.71% to 35.84% at 8th day. The reducing sugar and fiber contents reached 10.47% and 15.12% at 6th day from 4.04% and 12.82%, respectively. Eighth day sprouts contained highest level of polyphenol (gallic acid equivalent, 19.2 g/kg). Germination increased antioxidant activities (trolox equivalent, mmol/kg) of seeds with slight difference depending on assay. That is, antioxidant activity was highest at 6th day in DPPH radical scavenging (55.9), 10th day both in ABTS radical scavenging (71.6) and Fe(III) reducing (125.3), and 4th day in peroxy radical scavenging (116.7) assay. Melatonin content of seeds ($0.85{\mu}g/kg$) also increased and reached up to $14.93{\mu}g/kg$ at 6th day. In conclusion, germination more than 4 days raised antioxidant activity of seeds highly, and 6th day sprouts had additional benefit in terms of melatonin, reducing sugar and crude fiber contents.

Physico-Chemical Characteristics of White, Fermented and Red Ginseng Extracts (백삼, 발효인삼, 홍삼 농축액의 이화학적 특성)

  • Kong, Byoung-Man;Park, Min-Ju;Min, Jin-Woo;Kim, Ho-Bin;Kim, Se-Hwa;Kim, Se-Young;Yang, Deok-Chun
    • Journal of Ginseng Research
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    • v.32 no.3
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    • pp.238-243
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    • 2008
  • Comparison of the physico-chemical characteristics were investigated among white (WG), fermented (FG) and red ginseng (RG) extracts. We observed maximum contents of extractable solids in FG, but viscosity was lower than other ginseng extracts. The contents of ash and crude protein of FG were higher than those of other ginseng extracts. The contents of carbohydrate were similar, but component Na and cruid lipids were maximum in RG. we extended our study on comparison of the calories among WG, FG and RG. We noticed that comparison of the calories among WG, FG and RG showed insignificant difference.

Studies on Chemical Composition of Red Algae (국내산 홍조류의 구성성분에 관한 연구)

  • DO Jeong-Ryong;NAM Yun-Ju;PARK jin-Hee;JO Jin-Ho
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.30 no.3
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    • pp.428-431
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    • 1997
  • Chemical components of red algae (Gelidium amansii, Gracilaria verrucosa, Gigartina tenella, Carpopeltis cornea, Plocamium ovicornis, Callophyllis adnata, Lomentaria hakodatensis, Gymnogongrus flabelliformis, Chondrus pinnulatus, Adinotrichia fragilis, Gloipeltis tenax and Campylaephora hypnaeoides) were examined. The contents of carbohydrate, ash, crude protein and fat in dried red algae are $40.38\~69.88\%,\;8.57\~30.23\%,\;18.11\~33.90\%\;and\;0.11\~0.90\%$ on dry base, respectively. Yields of water-soluble compound in dried red algae and contents of sulfate in water-soluble compound extracted red algae were $4.32\~55.78\%\;and\;1.65\~19.48\%$, respectively. The principal sugars of water-soluble compound extracted from red algae were galactose, 3, 6-anhydrogalactose, glucose and xylose.

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Comparative Study of Food Components and Sensory Properties of Common Porphyra yezoensis and Functional Porphyra yezoensis (일반 김과 기능성 김의 식품성분과 관능평가 비교 분석에 관한 연구)

  • Seo, Hee-Young;Jung, Bok-Mi
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.36 no.10
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    • pp.1314-1319
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    • 2007
  • This study is to compare food components and the sensory properties of common and functional Porphyra yezoensis, Pyroligneous liquor, Salicornia herbacea L. and Salicornia herbacea L. treated with oak charcoal. The samples used in this study were provided by a local manufacturer. We analyzed their proximate composition, mineral content, heavy metal content and amino acids. We conducted the sensory evaluation before and after grilling Porphyra yezoenis. Common components are more plentiful in functional Porphyra yezoenis than in common except for carbohydrate and crude fiber. In the case of mineral content, generally functional Porphyra yezoensis contains much more mineral than common except for magnesium and zinc. Especially Salicornia herbacea L. treated with oak charcoal contains abundant iron. Also, Salicornia herbacea L. contains a lot of calcium potassium, copper and sodium. There is a little more heavy metal except for chromium, cadmium and lead in Salicomia herbacea L. treated with oak charcoal than in common that contains a lot of chromium, cadmium and lead, although a wide difference was not discovered between them. In the case of composed amino acid, there are much glutamic acid, glycine, isoleucine and phenylalanine in both Porphyra yezoensis. Especially alanine and phenylalanine are trebled in functional Porphyra yezoensis. Also, there are far more serine and lysine in Salicornia herbacea L. and Salicornia herbacea L. treated with oak charcoal than in common Porphyra yezoensis and Pyroligneous liquor. In the case of the sensory properties, there isn't a big difference before grilling Porphyra yezoensis; however, after grilling, most functional Porphyra yezoenis had good sensory properties results, especially Salicornia herbacea L. were better than Pyroligneous liquor.

Changes on the Components of Elaeagnus multiflora Fruits during Maturation (성숙에 따른 뜰보리수(Elaeagnus multiflora) 과실의 성분 변화)

  • Hong Ju-Yeon;Nam Hak-Sik;Kim Nam-Woo;Shin Seung-Ryeul
    • Food Science and Preservation
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    • v.13 no.2
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    • pp.228-233
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    • 2006
  • This study was Carried out to the changes of nutrientd and components for food valuation estimation during maturation of Elaeagnus multiflora fruits. The content of moisture was decreased during maturation, but brix was increased. The content of carbohydrate was increased during maturations but crude protein was decreased. And the content of reducing sugar was increased. The content of free fructose and glucose were high and its content were increased during maturation. Total content of free sugars were 135.66 mg/100 g-fr.wt in mature green fruit, 544.26, 787.83 mg/100 g-fr,wt in mature and over mature fruits, respectively. The Organic acids of Elaeagnus multiflora fruits were acetic, citric lactic, and malic, succinic acids. The content of citric acid was the highest among organic acids. Total content of organic acids were 407.95 mg/100 g-fr,wt in green mature fruits, and were decreased during maturation. The content of reducing vitamin C was 56.98 mg/100 g-fr.wt in mature green fruits and total contents of vitamin C was decreased during maturation. The content of phenol substance was 411.39 mg/100 g-fr.wt in the mature green fruit and was decreased during maturation.

Comparison of Functional Properties of Cheonggukjang by Using Red Ginseng (홍삼을 이용한 청국장의 기능적 특성 비교)

  • Park, Nan-Young;Seong, Jong-Hwon;Choi, Myung-Sook;Moon, Kwang-Deog;Kwon, Joong-Ho;Jeong, Yong-Jin
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.3
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    • pp.261-268
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    • 2008
  • To utilize Cheonggukjang as a raw material of diverse foods, the quality characteristics of Cheonggukjang and its processed food were compared. Cheonggukjang (CGJ), red ginseng Cheonggukjang (RCJ), and red ginseng Cheonggukjang hydrolysate (RCH) were powdered, and their quality and functional characteristics were examined. The result showed that in regard to general components, carbohydrate content of RCJ was higher than other samples while crude protein content was lower. Free amino acid content of RCH was 2,157.16 mg%, which was approximately 2 times higher than CGJ, and the content of essential amino acid was 812.18 mg%, which was the highest. The result of SDS-electrophoresis pattern showed that CGJ and RCJ showed a molecular weight smaller than 33 kDa, and RCH showed a smaller than 17 kDa low molecular weight, confirming the hydrolysis to small molecular weight. Among the samples, free radical scavenging activity, superoxide radical scavenging activity, and ACE inhibitory activity did not show a significant difference; nonetheless, RCH showed the highest activity while CGJ showed the highest fibrinolytic activity of 111.38 unit. In addition, in sensory evaluation, the peculiar bitter taste of red ginseng could be detected while the overall acceptability was improved. Based on the above results, in comparison with CGJ, as for RCJ and RCH, their function was strengthened and unpleasant odor was reduced, and thus it is anticipated that they could be used as a raw material of diverse foods.

Analysis on the Components of the Emit of Elaeagnus multiflora Thumb (뜰보리수 열매의 유용성분 분석)

  • 김남우;주은영;김성림
    • Food Science and Preservation
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    • v.10 no.4
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    • pp.534-539
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    • 2003
  • This study was conducted to analyze components of the fruit of Etaeagnus multiflora to form a part of studies on the nutritional and functional materials of fruits and leaves of E. multiflora, and the development of a functional food. The moisture content of the fruit was 82.34%, and the content of carbohydrate, crude protein, lipid and ash was 15.4, 1.29, 0.79 and 0.54%, respectively. The pH of the fruit extract was 3.29, acidity 0.64%, and brix 14.0. Total sugar was contained 1.03/100g and reducing sugar was 3.27 g/100g. The content of soluble protein was 0.48 g/100g, and polyphenol was 0.28 g/100g. The glucose and fructose as a free sugar was 401.96 and 370.34 mg/100g, and account for a great portion of the components. Total content of free sugary was 0 mg/100g. The total amount of organic acid was 294.44 mg/100g, and the content of citric acid was 265.01 mg/100g, malic acid 18.16 mg/100g, and succinic acid 8.50 mg/100g. In the free amino acid, the concentration of serine was the highest (13.93mg/100g), and alanine, aspartic acid, cystine and methionine were high in the above order. The content of ascorbic acid was 131.35 mg/100g and that of dehydroascorbic acid was 431.37 mg/100g. Potassium, magnesium and sodium content were 627.44, 140.28, and 56.70 mg/100g, respectively.

Properties of Jeonbyeong Containing Letinus edodes Powder (표고버섯 가루를 첨가한 전병의 특성)

  • Park, Jung-Suk;Na, Hwan-Sik
    • Food Science and Preservation
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    • v.14 no.4
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    • pp.337-344
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    • 2007
  • Lentinus edodes (Shiitake mushroom) powder was added to Jeonbyeong dough in an effort to improve the quality and functional properties of the dough. The water absorption increased as the amount of L. edodes powder increased, while the time taken for gelatinization, and the valorimeter value of the final dough, both decreased. The temperature at gelatinization and the highest temperature attained during dough preparation were both similar to control values. The extensogram showed that the resistance of the dough to extension, and the maximum extensibility, both decreased with addition of L. edodes powder. The total contents of crude protein and ash increased with increasing amounts of L. edodes powder, while the dough carbohydrate levels decreased. Addition of the mushroom powder to Jeonbyeong (a kind of Korean traditional snack) decreased dough lightness, and decreased yellowness, as measured on Hunter's color scale. The hardness of Jeonbyeong was increased by adding 15% (w/v) L. edodes powder, but was decreased when 20% (w/v) L. edodes powder was used. The sensory score of Jeonbyeong containing 10% (w/v) L. edodes powder was the highest of all shack tested, in both overall quality characteristics and sensory evaluation.

Analysis on the Components of the Elaeagnus multiflora Thunb. Leaves (뜰보리수 잎의 유용성분 분석)

  • Yoon, Kyung-Young;Hong, Ju-Yeon;Shin, Seung-Ryeul
    • Food Science and Preservation
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    • v.14 no.6
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    • pp.639-644
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    • 2007
  • This study analyzed components of the leaves of Elaeagnus multiflora as part of studies on the nutritional and functional materials of fruits and leaves of this plant. The moisture content of the leaves was 71.6% and the carbohydrate, crude protein, lipid and ash contents were 24.1, 1.4, 0.4 and 2.5%, respectively. Concentrations of reducing sugars, soluble proteins and polyphenols were 460.0, 503.3 and 805.6 mg/100 g, respectively. Fructose was the dominant free sugar, and arabinose, maltose, glucose, and a small amount of trehalose were also detected. Malic acid was the main organic acid in E. multiflora leaves, and acetic acid, citric acid, lactic acid, and succinic acid were also present. E. multiflora leaves were high in K, Ca and Mg. Of hydrolyzed amino acids, alanine was present at the highest concentration (112.0 mg/100 g), with threonine, leucine, valine and phenylalanine being the next most common. Glutamic acid and ornithine were the dominant free amino acid and amino acid derivative, respectively.

Effects of Lignum sappan Extract on the Growth of Streptococcus mutans KCTC 3065 (소목 분획물이 Streptococcus mutans KCTC 3065의 생장에 미치는 효과)

  • Jeon, Eun-Sook;Han, Man-Deuk
    • Journal of dental hygiene science
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    • v.4 no.3
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    • pp.127-131
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    • 2004
  • This study was to study the antibacterial effect of Lignum sappan extract on S. mutans growth. The antibacterial activities of Lignum sappan's crude extract was measured 17.3 mm at 20 mg/ml concentration. The growth of S. mutans in control medium was the highest at 8hr, while the media of Lignum sappan extract added-medium (2 mg/ml) showed maximum growth at 16hr. The pH values of the control media was 5.08 at 8hr, but the media supplemented with Lignum sappan extract was 6.69 at 8hr. The amounts of total carbohydrate of the control media was 0.81 mg/ml at 8hr, but the media supplemented with Lignum sappan extract was 2.06 mg/ml at 8hr. In the protein change of culture medium, the control culture broth and the cultures supplemented with Lignum sappan extract was 8.39 mg/ml and 12.3 mg/ml at 8hr, respectively. The S. mutans polysaccharide contents of the control media and the media supplemented with Lignum sappan extract was 300 mg/100ml and 60 mg/100ml at 8hr, respectively.

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