• Title/Summary/Keyword: nutritional compositions

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Chemical Comparison of Germinated- and Ungerminated-Safflower(Carthamus tinctorius) Seeds (홍화(Carthamus tinctorius L.)씨와 발아홍화씨의 화학성분 비교)

  • Kim, Eun-Ok;Lee, Ki-Teak;Choi, Sang-Won
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.37 no.9
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    • pp.1162-1167
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    • 2008
  • This study was to investigate the chemical compositions of germinated (GSS)- and ungerminated (UGSS)-safflower (Carthamus tinctorius) seeds. GSS had higher amount of sugar and crude fiber than UGSS, but less amounts of protein and lipid. Levels of $\alpha$-tocopherol and essential amino acids of GSS were higher than those of UGSS, although there are no difference in fatty acid composition between GSS and UGSS. Among the nine phenolic compounds detected, five phenolic compounds, except for two lignans and two flavonoids, were found in both GSS and UGSS. Four serotonin derivatives accounted for about 80 per cent of total phenolic compounds, and levels of five phenolic compounds decreased slightly with germination. These results suggest that germination may enhance the functionality of safflower seed by increasing nutritional compositions and by decreasing phenolic compounds with bitter taste and cathartic effects.

Effects of Chronic Ethanol Consumption and Taurine Supplementation on Hepatic Total and Phospholipid Fatty Acid Compositions in Rats (만성적인 에탄올 섭취와 타우린보강이 흰쥐간의 총지방산 및 인지질지방산 조성에 미치는 영향)

  • Um, Young-Sook;Chung, Eung-Jung;Oh, Joo-Yeon;Park, Tae-Sun
    • Journal of Nutrition and Health
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    • v.33 no.2
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    • pp.124-133
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    • 2000
  • This study evaluated the effects of chronic ethanol consumption and/or taurine supplementation on hepatic total, phospholipid fatty acid composition and the metabolism of rats fed one of three purified liquid diets for 8 weeks. the rats followed either the control diet (CD, ethanol-free and taurine-free diet); ethanol diet (ED, CD+ 50g ethanol/L) or ethanol-taurine diet (ETD, ED+3.75g taurne/L). Chronic ethanol consumption and/or dietary taurine supplementation were associated with altered hepatic total and phospholipid fatty acid composition. compared to the values for the control rats, ED or ETD significantly decreased the percentage of total monounsaturated fatty acids ($\Sigma$MUFA), and increased the percentage of total polyunsaturated fatty acids ($\Sigma$PUFA) of hepatic total lipids(p〈0.01). Percentages of 14:0(P〈0.01) and 16:0(p〈0.001) were sigificantly lower, and those of 18:0(p〈0.01), 20:0(p〈0.001), 20:3$\omega$6(p〈0.01) and 22:4$\omega$6(p〈0.01) in hepatic total fatty acid compositions were oserved in rats fed ETD versus those fed ED or ETD. No significant differences in hepatic total fatty acid compositions were observed in rats fed ETD versus those fed ED. Percentages of 24:0(p〈0.01), 16:1(p〈0.05), 20:1(p〈0.01), 18:2$\omega$6(p〈0.01) and 18:3$\omega$3(p〈0.05) in hepati phospholipids were significantly higher, and those of 14:0(p〈0.01), 16:0(p〈0.001), 20:3$\omega$3(p〈0.05) in hepatic phospholipids were significantly higher, and those of 14:0(p〈0.01), 16:0(p〈0.001), 20:3$\omega$3(p〈0.001), 22:6$\omega$3(p〈0.001) and $\Sigma$$\omega$3(P〈0.001) were significantly lower in rats fed ED or ETD compared to the values for the control rats. The Δ5 desaturation index(20:3$\omega$6⇒20:4$\omega$6) and elongation index (20:5$\omega$3⇒22:5$\omega$3) of hepatic phospholipid index (20:3$\omega$6⇒20:4$\omega$6) and decreased Δ4 desaturation index (22:5$\omega$3⇒22:6$\omega$3) compared to the values for the ED rats. These changes in hepatic fatty acid composition induced by chronic ethanol consumption and/or taurine supplementation might be associated with the modulations of physical properties of the hepatic cell membrane and its sensitivity to peroxidation damage.

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Nutritional Composition of White-flowered and Pink-flowered Lotus in Different Parts (백련(白蓮)과 홍련(紅蓮)의 부위별 영양성분)

  • Heo, Nam-Chil;Choi, Kyeong-Cheol;Ahn, Yang-Jun;Yang, Ho-Cheol
    • Korean Journal of Food Science and Technology
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    • v.39 no.1
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    • pp.14-19
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    • 2007
  • The nutritional compositions of different parts (roots, leaves, and seeds) of two lotus species (Nelumbo nucifera Gaertner), Muan's white-flowered and Naju's pink-flowered, are as follows; crude protein content in the seed was four times higher and the carbohydrate content was three times higher than those in the root and leaf. Comparing between the species, the crude protein content of the white lotus was the higher than that of the pink lotus, but the carbohydrate content was comparatively lower. The potassium content of the minerals in all samples was much higher than those in others. Additionally, the iron content of the root was much higher than those in the leaf and seed. In both species, the major free sugar in the root was sucrose; the main sugars in the leaf were fructose and alucose, and those in the seed were stachyose, raffinose, and sucrose. Among amino acids, glutamic acid showed the highest level in the leaf and seed, while aspartic acid was the highest in the root.

Nutritional Components and Physiological Activities of Cirsium setidens Nakai (고려엉겅퀴(곤드레)의 영양성분 및 생리활성)

  • Lee, Ok-Hwan;Kim, Jae Hwan;Kim, Young Hyun;Lee, Young Jun;Lee, Jong Seok;Jo, Ju Hyun;Kim, Bong Gyun;Lim, Jae Kag;Lee, Boo-Yong
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.43 no.6
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    • pp.791-798
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    • 2014
  • Cirsium setidens Nakai, a wild perennial, is widely consumed as a food and traditional medicine in Korea. In addition, diverse functionalities of C. setidens Nakai, including anti-inflammatory and antioxidant effects, have been reported. However, whether or not C. setidens Nakai and its major compound, pectolinarin have high nutritional value and functional properties remains unknown. This paper investigated the proximate compositions, mineral contents, hepatoprotective activities, hepatic fat accumulation inhibitory activities, and anti-inflammatory and anti-oxidant activities of C. setidens Nakai and its component parts, including of pectolinarin. The result showed that C. setidens Nakai and its major compounds have potential as a functional food material with natural antioxidant and anti-inflammatory activities.

Analysis of Nutritional Components and Evaluation of Functional Activities of Sasa borealis Leaf Tea (조릿대 잎차의 영양성분 분석 및 기능성 평가)

  • Jeong, Chang-Ho;Choi, Sung-Gil;Heo, Ho-Jin
    • Korean Journal of Food Science and Technology
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    • v.40 no.5
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    • pp.586-592
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    • 2008
  • In this study, the nutritional components and functional activities of Sasa borealis leaf tea were evaluated. The proximate compositions were as follows; moisture 5.68%, crude protein 16.38%, crude fat 4.68%, nitrogen free extracts 32.37%, crude fiber 32.36%, and ash 8.53%, respectively. The mineral elements were as follows: K 2,133.83, Ca 1,144.09 and P 543.00 mg%, respectively. The amino acid contents of the Sasa borealis leaf tea were very rich in proline (1,275.26 mg/100 g) and deficient in cystine (71.49 mg/100 g). The major fatty acid components were linoleic acid (50.52%), palmitic acid (18.52%), and oleic acid (14.16%). Finally, based on our sensory evaluations, the $80^{\circ}C$ extracted Sasa borealis leaf tea evidenced the best overall quality. The contents of total phenol and total flavonoids of the 80% methanol and hot water extracts were 15.09, 7.69 mg/g and 12.03, 6.12 mg/g, respectively. The DPPH and $ABTS^+$ radical scavenging activities of the 80% methanol extract from Sasa borealis leaf tea were 86.87% and 83.85% at a concentration of 1.25 mg/mL. The 80% methanol and hot water extracts evidenced reducing power and inhibitory effects against acetylcholinesterase in a dose-dependent manner.

Nutritional composition of horsemeat compared to white meat (chicken and duck) (백색육(오리고기, 닭고기)과 말고기의 식품학적 성분 비교)

  • Kim, Do-Hee;Kim, Kyung-Won;Kim, Young-Hoon;Kim, Joo-Ah;Kim, Jun;Moon, Kwang-Deog
    • Food Science and Preservation
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    • v.22 no.5
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    • pp.644-651
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    • 2015
  • To enhance the consumption of horse meat, its nutritional composition was analyzed and compared to that of white meat (i.e., chicken and duck), which consumers consider healthy. Horse meat samples used in the experiment were classified by breed and grade as follows: Jeju horse (grade $1^+$ and 1), Jeju crossbred horse (grade 1 and 2), Thoroughbred (no grade), and cuts (loin, chuck roll, and arm picnic). In an analysis of general components and cholesterol, the horse meat was confirmed as a low-fat, high-protein, and low-cholesterol food material. In an amino acid analysis, horse meat contained a higher proportion of essential amino acids than white meat. The fatty acid compositions were also analyzed. The content of linolenic acid, an essential fatty acid, was significantly higher in all horse meat groups than in Ross chicken and Pekin duck meat. The content of palmitoleic acid showed similar results. In a mineral analysis, the levels of Fe and Zn in horse meat were higher than those of white meat. The mineral content was as follows except for the leg of shite meat: K > P > Na > Mg > Ca > Zn > Fe.

Comparison of Nutritional Composition and Antioxidative Activity for Kabocha Squash and Pumpkin (단호박과 늙은 호박의 영양성분 및 항산화활성 비교)

  • Kim, Sung-Ran;Ha, Tae-Youl;Song, Hyo-Nam;Kim, Yoon-Suk;Park, Yong-Kon
    • Korean Journal of Food Science and Technology
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    • v.37 no.2
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    • pp.171-177
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    • 2005
  • Nutritional compositions and antioxidative activity of Kabocha squash (Cucurvita maxima Duch) as health food were compared with those of pumpkin (Cucurvita moschata Duch). Kabocha squash had higher soluble solids and twofold harder flesh than pumpkin. Crude protein, crude lipid and total amino acid contents of Kabocha squash were higher than those of pumpkin. Major free sugar in Kabocha squash was sucrose, and its content were 2.1 times higher than that of pumpkin. Major organic acids of Kabocha squash and pumpkin were succinic and malic acid, respectively. Kabocha squash had higher amounts of vitamins $A,\;B_1,\;B_2,\;C$ and C than pumpkin, while both showed similar mineral contents except for iron. Contents of Total pectin and hydrochloric acid soluble pectin of Kabocha squash were 17.00 and 7.37 g/100 g AIS, respectively. In pumpkin, total pectin content was 25.14 g/100 g AIS, and water soluble pectin content was higher than those of other pectin fractions. Contents of carotenoid in Kabocha squash and pumpkin were 285.91 and 24,62 mg% d.b., respectively. Kabocha squash had higher electron-donating radical-scavenging activity, SOD-like activity and nitrite-scavenging effect than pumpkin.

Effects of Various Thermal Treatments on Physicochemical and Nutritional Properties of Shiitake Mushrooms (열처리 방법에 따른 표고버섯의 이화학적 특성 및 영양학적 분석)

  • Lee, Jung-Gyu;Kim, Kwang-Il;Hwang, In-Guk;Yoo, Seon-Mi;Min, Sang-Gi;Choi, Mi-Jung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.44 no.6
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    • pp.874-881
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    • 2015
  • In the food industry, thermal treatment is an important process for extending shelf-life of foods. However, heating process affects the physicochemical, nutritional, and microbial properties of foodstuff such as color, texture, pH, and proximate compositions. This study was conducted to select an optimal thermal treatment by observing physicochemical, nutritional, and microbial effects of shiitake mushrooms with different thermal treatment methods. Shiitake mushrooms were washed and sliced equally ($5cm{\times}0.5cm{\times}0.5cm$) and then heat-treated by three methods. Samples were heated in $100^{\circ}C$ boiling water, steamed for 10 min, or pan fried at $130^{\circ}C$ for 4 min. Total color difference values showed significantly increasing tendency with treatment time. For pH values, boiling water-treated mushrooms showed increasing tendency according to increased thermal treatment. For the results of hardness, boiling water or pan frying-treated mushrooms showed reduced tendency within 1 min. In the case of steam-treated mushrooms, hardness values were maintained for 1 min. Organic acid contents of steam-treated sample showed the lowest value among treatments. For microbial counts, steam-treated samples for 3 min showed the lowest value. Consequently, the results of this study suggest that steam treatment could be the optimal thermal treatment to minimize quality loss of shiitake mushrooms.

Nutritional Components and Antioxidant Activities of Commercial Loquat (Eryobotrya japonica) Leaf Tea (시판 비파나무잎차의 영양성분 및 항산화 활성)

  • Jeong, Chang-Ho;Kim, Il-Hun;Shim, Ki-Hwan;Bae, Young-Il
    • Journal of agriculture & life science
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    • v.45 no.4
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    • pp.105-112
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    • 2011
  • Nutritional components and antioxidant activities of commercial loquat leaf tea (CLLT) were evaluated. Proximate compositions were as follows; moisture 5.34%, crude protein 8.38%, crude fat 13.26%, nitrogen free extract 46.21%, crude fiber 19.24% and crude ash 7.57%, respectively. Ascorbic acid and total phenolics content of CLLT was 0.47 mg/100 g and 42.55 mg/GAE g, respectively. Mineral elements were Ca 1,624.01 mg/100 g, K 1,099.66 mg/100 g, and Mg 192.70 mg/100 g, respectively. Amino acid contents of CLLT were very rich in glutamic acid 565.98 mg/100 g and deficient in cystine 12.97 mg/100 g. The 2,2'-azino-bis (3-ethylbenzthiazoline-6- sulfonic acid) diammonium salt (ABTS), 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activities of hot water extract from CLLT were 72.51% and 90.11%, respectively at a concentration of $1,000{\mu}g/mL$. Reducing power and ferric reducing antioxidant power (FRAP) of hot water extract from CLLT were increased in a dose dependent manner. Therefore, these results suggest that the hot water extract of CLLT possess antioxidant activities and thus it has great potential as a source for functional food such as natural antioxidant.

Analysis of Nutritional Components and Development of an Intermediate Moisture Food from Sturgeon (철갑상어의 영양성분 분석 및 중간수분식품 개발)

  • Jin, Soo-Il;Kim, Young-Cook;Kang, Sung-Won;Jeon, Chang-Ho;Choi, Soo-Jung;Kim, Jae-Kyeom;Choi, Sung-Gil;Heo, Ho-Jin
    • Food Science and Preservation
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    • v.15 no.5
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    • pp.719-724
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    • 2008
  • The overall objectives of this study were to examine the potential of sturgeon as an intermediate moisture food (IMF) by measurement of nutritional components, such as minerals, fatty acids, amino acids, and water activity. Chemical compositions were as follows:moisture 73.2%, crude protein 19.9%, crude lipid 5.7%, ash 1.1%, and carbohydrate 0.1%. Minerals were K 317.70, P 259.88, and Mg 29.78 mg/100 g. Fatty acids detected were oleic acid (40.46% of total), palmitic acid (23.27%), and linoleic acid (15.35%). In addition, sturgeon was very rich in glutamic acid (1,189.71 mg/100 g) and deficient in serine (55.12 mg/100 g). Moisture content and water activity of sturgeon dried at $40^{\circ}C$ after soaking in different concentrationsof sugar and salt solutions were 15.12-16.24% and 0.68-0.79, respectively. Sensory evaluation of sturgeon soaked in different concentrations of sugar and salt solutions indicated that sturgeon soaked in 3.0% (w/v) sugar and salt solution scored highest.