Journal of the Korean Society of Food Science and Nutrition
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v.29
no.6
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pp.995-1002
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2000
In order to Develop a low Na functional kimchi using sea tangle, the Na-binding capacity of alginate in sea tangle along with other dietary fibers was evaluated in vitro. The adding type and amount of the sea tangle that contains alginate in kimhi and characteristics of the sea tangle added kimchi were also studied. Na-binding capacity of various dietary fibers such as cellulose, pectin, gun gum, carageenan, alginates (sodium alginate, alginate, alginate from sea tangle) was measured by equilibrium dialysis method in pH 2 and pH 7 in vitro. Gua gum, carageenan and a group of alginates effectively bound to Na+ Espacially sodium alginate showed high Na-binding capacity of 29.2% in pH of stomach (pH 2.0) and 33.8% in pH of small intestine (pH 7.0), however, the alginate extracted from sea tangle could not bind Na in PH of stomach (pH 2.0), but 27.4% in pH of small intestine (pH 7.0) condition. The content of alginate in sea tangles (dried sea tangle, salted sea tangle and washed salted sea tangle) was 19.8 ~ 22.2% on dry matter basis. The sea tangle added kimchi was prepared with the addition of the flake type (0.5$\times$3 cm) of sea tangle with a quantity of 30% in kimchi from the data of the sensory analysis. The addition of the sea tangle to the kimchi increased the content of soluble dietary fiber, suggesting the Na-binding capacity increased. The sea tangle added kimchi (SK) and sea tangle and fermented anchovy added kimchi (SAK) showed higher levels of reducing sugar and acidity than the control kimchi (CK). In quantitative descriptive analysis (QDA) SK and SAK showed higher score in overall acceptance, and lower score in acidic order than CK, however, SK showed less moldy taste and more fresh acidic taste than SAK.
The purpose of this research was to investigate the effects of 10%(w/w) of various dietary fiber, pectin(P), lignin(L), cellulose(C) and fiber-free (F) on lipid content of serum, liver and intestinal tissues in rats fed 10% coix oil (C)-or lard(L)-1% cholesterol diets for four weeks. The lard pectin(LP) group was the lowest In body weight gain and feed intake. Liver weight was not affected by dietary fiber and fat sources, and intestinal weight was higher in pectin(CP, LP) groups than in the other groups. Serum cholesterol was significantly lower in pectin(CP, LP) groups than in fiber-free(CF, LF) groups, and was higher in lard fiber-free(LF) than In the other groups(p<0.05). Serum triglycerides was significantly lower in coix oil pectin(CP) and lignin(CL, LL) than in fiber-free(CF, LF) groups. Liver total lipid and cholesterol content was significantly lower In pectin than In lard fiber-free group, and liver triglycerides was lower in coix oil pectin(CP) than in fiber-free groups (p<0.05). Lipid content of intestinal tissue was not affected by dietary fiber source. But total lipid and triglyceride content of intestinal tissues was significantly lower, and cholesterol content was higher in coix oil than in lard group(p<0.05). These results indicate that pectin and lignin reduced serum cholesterol. Pectin also decreased total lipid, cholesterol and triglyceride contents of liver in rats fed either coix oil-or lard-cholesterol diets whereas lignin did not affect liver lipid content.
The objective of this research was to characterize fucoidans isolated from Laminaria religiosa and Undaria pinnatifida in Korea to obtain basic data for Production of soluble dietary fiber materials with biological functionality. Fucoidans were successively extracted 3 times at $65\%$ for 1hr with arid solution of pH 2.0, and cetylpyridinium chloride was used for partial purification. The yields of partially purified fucoidans were $2.71\%$ for L. religiosa, $6.65\%$ for sporophylls of U. pinnatifida and $0.40\%$ for blade of U. pinnatifida. The yield from sporophylls of U. pinnatifida was highest among the sample tested, whereas the yield from blade of U. pinnatifida was lowest. It appeared that the fuconidans content in different parts of U. pinnatifida varied. Partially purified fucoidans were separated into 3 fractions by DEAE-Sephadex A-25 ion exchange column and the maior fractions were refractionated with tractional precipitation with ethanol. $60-70\%$ ethanol precipitated fractions of 1. religiosa and sporophylls of U. pinnatifida turned out to be homogeneous by cellulose acetate electrophoresis and gel filteration chromatography. The molar ratios of fucose, galactose, and sulfate in the purified fucoidans(ethanol precipitated fractions) were 1 : 0.31 : 2.43 for L. religiosa and 1 : 0.97 : 1.99 for sporophylls of U. pinnatifida. The averaged molecular weights of the purified fucoidans from L. religiosa and sporophylls of U. pinnatifida were 31,000 and 38,000, respectively.
Journal of the Korean Society of Food Science and Nutrition
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v.30
no.1
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pp.112-118
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2001
To study effect of non-fat components present in plant seeds on lipid metabolism, defatted safflower and perilla seed powders were used in high cholesterol diets for ovariectomized (ovx) female Sprague-Dawley rats weighing 227$\pm$15g. Experimental groups were six as follows; normal group without ovariectomy and cholesterol-free diet, sham and ovx-control groups with high cholesterol and cellulose for dietary fiber, ovx-est group with the same diet as ovx-control but with eight subcutaneous injections of 50$\mu\textrm{g}$ 17$\beta$-estradiol. ovx-safflower and ovx-perilla with 29% and 16% (w/w) of each defatted powder in high cholesterol diets at the expense of cellulose. Weight gains were lower in normal and sham groups and food efficiencies were lower in normal,ovx-est and ovx-safflower groups compared with ovx-control. Uterus weights were dramatically reduced by ovariectomy but restored completely by 17$\beta$-estradiol and partially (~5%) by defatted safflower. Plasma levels of total cholesterol were not different among ovx-control, sham, vx-est and ovx-safflower groups (90.8~95.1 mg/dL) but that was lower in ovx-perilla (80.4$\pm$6.2 mg/dL). Plasma triglyceride (TG) levels were lower in sham (76.6$\pm$7.0 mg/dL) and ovx-perilla (79.2$\pm$5.8 mg/dL) groups. Liver cholesterol levels were lower in sham, ovx-est, ovx-safflower and ovx-perilla groups (26.6~29.8 mg/g) than ovx-control (36.5$\pm$3.2 mg/g). But liver TG levels were reduced only sham and ovx-est groups compared to control group. Fecal excretions of bile acid and cholesterol were highest in ovx-safflower group (30.8$\pm$5. and 32.1$\pm$5.7 mg/g) compared with other ovx groups (20.8~23.1 and 12.1~19.5 mg/g). These results suggest that both perilla and safflower seeds contain groups (20.8~23.1 and 12.1~19.5mg/g). These results suggest that both perilla and safflower seeds contain non-fat and non-fiber components having lipid lowering effects.
Saenphoom, P.;Liang, J.B.;Ho, Y.W.;Loh, T.C.;Rosfarizan, M.
Asian-Australasian Journal of Animal Sciences
/
v.26
no.4
/
pp.537-544
/
2013
This study examined whether pre-treating palm kernel expeller (PKE) with exogenous enzyme would degrade its fiber content; thus improving its metabolizable energy (ME), growth performance, villus height and digesta viscosity in broiler chickens fed diets containing PKE. Our results showed that enzyme treatment decreased (p<0.05) hemicellulose and cellulose contents of PKE by 26.26 and 32.62%, respectively; and improved true ME (TME) and its nitrogen corrected value ($TME_n$) by 38% and 33%, respectively, compared to the raw sample. Average daily gain (ADG), feed intake and feed conversion ratio (FCR) of chickens fed on different dietary treatments in the grower period were not significantly different. Although there was no difference in feed intake (p>0.05) among treatment groups in the finisher period, ADG of chickens in the control (PKE-free diet) was higher (p<0.05) than in all treatment groups fed either 20 or 30% PKE, irrespective of with or without enzyme treatment. However, ADG of birds fed with 20% PKE was higher than those fed with 30% PKE. The FCR of chickens in the control was the lowest (2.20) but not significantly different from those fed 20% PKE diets while birds in the 30% PKE diets recorded higher (p>0.05) FCR. The intestinal villus height and crypt depth (duodenum, jejunum and ileum) were not different (p>0.05) among treatments except for duodenal crypt depth. The villus height and crypt depth of birds in enzyme treated PKE diets were higher (p<0.05) than those in the raw PKE groups. Viscosity of the intestinal digesta was not different (p>0.05) among treatments. Results of this study suggest that exogenous enzyme is effective in hydrolyzing the fiber (hemicellulose and cellulose) component and improved the ME values of PKE, however, the above positive effects were not reflected in the growth performance in broiler chickens fed the enzyme treated PKE compared to those received raw PKE. The results suggest that PKE can be included up to 5% in the grower diet and 20% in the finisher diet without any significant negative effect on FCR in broiler chickens.
Journal of the Korean Society of Food Science and Nutrition
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v.22
no.5
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pp.524-530
/
1993
This study was designed to observe the effects of the feeding Platycodon grandiflorum, Codonopsis Ianceolata, perilla oil and safflower oil on the fatty acid composition in serum and liver of dietary hypercholesterolemic rats. Experimental groups mixed with 5% cellulose +10% lard (group 1, control group), 2% cholestyraemine +10% lard (group 2), 5% C. ianceolata+ 10% perilla oil (group 3), 5% P. grandiflorum+10% perilla oil (group 4), 5% C. ianceolata+10% safflower oil (group 5) and 5% P. grandiflorum+10% safflower oil (group 6) were administered to the male rats of the Sprague Dawley for 3 weeks. In the fatty arid compositions of serum total fatty arid, phospholipid, triglyceride and cholesteryl ester, the linoleic acid content was most in the PUFA and it was major fatty acid. Particularly, the other components except the phospholipid fraction in serum lipids were influenced by the fatty acid composition of the test lipids from the fact that linoleic acid content was remarkably more in the groups 5 and 6. In the fatty arid compositions of liver total fatty acid, phospholipid, triglyceride and cholesteryl ester, the linoleic acid content was more in the PUFA and so it was major fatty acid. Particularly, the arachidonic and eicosapentaenoic acid contents of phospholipid fraction in liver lipids were rather more. from the above research, fatty arid composition of serum and liver lipid components were influenced by the fatty acid composition of the test lipids from the fact that linoleic acid takes up the highest percentage.
Proliferation of shrubs at the expense of native forage in pastures has been associated with large changes in dry-matter intake and dietary components for grazing ruminants. These changes can also affect the animals' physiology and metabolism. However, little information is available concerning the effect of pastoral-shrub grazing on the rumen bacterial community. To explore rumen bacteria composition in grazing yaks and the response of rumen bacteria to increasing shrub coverage in alpine meadows, 48 yak steers were randomly assigned to four pastures with shrub coverage of 0%, 5.4%, 11.3%, and 20.1% (referred as control, low, middle, and high, respectively), and ruminal fluid was collected from four yaks from each pasture group after 85 days. Rumen fermentation products were measured and microbiota composition determined using Ion S5™ XL sequencing of the 16S rRNA gene. Principal coordinates analysis (PCoA) and similarity analysis indicated that the degree of shrub coverage correlated with altered rumen bacterial composition of yaks grazing in alpine shrub meadows. At the phyla level, the relative abundance of Firmicutes in rumen increased with increasing shrub coverage, whereas the proportions of Bacteroidetes, Cyanobacteria and Verrucomicrobia decreased. Yaks grazing in the high shrub-coverage pasture had decreased species of the genus Prevotellaceae UCG-001, Lachnospiraceae XPB1014 group, Lachnospiraceae AC2044 group, Lachnospiraceae FCS020 group and Fretibacterium, but increased species of Christensenellaceae R-7 group, Ruminococcaceae NK4A214 group, Ruminococcus 1, Ruminococcaceae UCG-002, Ruminococcaceae UCG-005 and Lachnospiraceae UCG-008. These variations can enhance the animals' utilization efficiencies of cellulose and hemicellulose from native forage. Meanwhile, yaks grazed in the high shrub-coverage pasture had increased concentrations of ammonia nitrogen (NH3-N) and branched-chain volatile fatty acids (isobutyrate and isovalerate) in rumen compared with yaks grazing in the pasture without shrubs. These results indicate that yaks grazing in a high shrub-coverage pasture may have improved dietary energy utilization and enhanced resistance to cold stress during the winter. Our findings provide evidence for the influence of shrub coverage on the rumen bacterial community of yaks grazing in alpine meadows as well as insights into the sustainable production of grazing yaks on lands with increasing shrub coverage on the Qinghai-Tibet Plateau.
Journal of the Korean Society of Food Science and Nutrition
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v.22
no.1
/
pp.53-57
/
1993
The compositions of non-volatile organic acids, mineral, fiber and fatty acids of leaf mustard were investigated. Non-volatile organic acid contents were higher in leaf than in leaf stalk. Of non-volatile organic acids assayed malic acid was the most abundant in both leaf (79.1 mg%) and leaf stalk (46.4mg%), followed by L-ascorbic, oxalic, citric and succinic acids. Mineral contents were also higher in leaf than in leaf stalk. Both leaf and leaf stalk contained calcium most, followed by magnesium, sodium, iron, zinc and copper. It has also been found that leaf mustard contains more iron than any other Cruciferous vegetables reported. The major fatty acid of total lipid was $\alpha$-linolenir acid (63.2% in leaf, 55.3% in leaf stalk). The ratios of polyun-saturated fatty acids to saturated fatty acids (P/S ratio) were 4.1 in leaf and 2.9 in leaf stalk. The content of pectic substances, in terms of alcohol-insoluble solid, of leaf was 9.4% which was 1.4-fold higher than that of leaf stalk. Of pectic substances, hot soluble pectins (HWSP) were present most and followed by sodium hexametaphosphate soluble (HXSP) and HCI soluble pectins (HSP). Total dietary fiber content of mustard leaf was 2.68% and in general, higher content of total dietary fiber than leaf had. Neutral detergent fiber content was higher than acid detergent fiber, and cellulose was higher than hemicellulose by 2.1-fold in leaf stalk.
The study was carried out to evaluate leucaena seeds as a protein replacement of mustard seed cake (MSC) in the concentrate mixture of growing lambs. Fifteen owing male lambs (Local${\times}$Corridale) with an average body weight of 16.3 kg were allocated into three dietary treatments (T1, T2, and T3) with five animals in each group. Animals were offered dry mixed grass, berseem hay and concentrate mixture to meet their nutrient requirements. In concentrate mixture of T1, (Control) MSC was used as protein source, while in T2 and T3 groups, 25 and 50% of MSC was replaced by leucaena leucocephala seeds. On completion of three months (90 days) of feeding, a digestion cum-metabolism trial was conducted to determine DMI, nutrient utilization, and nitrogen balance. Changes in body weight were recorded at 15 day internals and eating patterns were recorded for 3 consecutive days at the end of the feeding trial. MSC had higher CP contents than leucaena seeds (27.0%). Mimosine contents in leucaena seeds were 1.1 compared to 0.2 and 0.4% in concentrate mixture of T2 and T3 group, respectively. Dry matter intake varied non-significantly ($79.3{\pm}1.2$ to $83.4{\pm}1.3g/kg$$w^{0.75}$) across the dietary treatments. Digestibility of DM and cell wall polysaccharides (NDF, ADF. Cellulose and hemicellulose) were comparable, however CP digestibility was relatively lower in leucaena luecocephala seeds based groups (T2 $45.5{\pm}1.7$ and T3 $46.7{\pm}3.5$) compared to MSC supplemented group (T1 $47.7{\pm}0.9%$). The growth rate of lambs was non-significantly higher in T1 ($79.2{\pm}5.4$) compared to T2 ($73.8{\pm}8.8$) and T3 ($73.9{\pm}7.0$), respectively. The animals were in positive nitrogen balance and N-balance varied from 1.8 to 2.9 g/d across treatment groups. The eating rate (% of total offered) of concentrate up-to 15 min was relatively higher in T1 (82.4) than T2 (74.2) and T3 (77.8%). However no effect of leucaena seeds was recorded on total DMI of animals. The results of the study revealed that the inclusion of up to 50% leucaena seeds, as protein source in concentrate mixture of lambs had no adverse effect on DMI, nutrient utilization, eating patterns, nitrogen balance and growth performance of lambs.
Effects of different levels of molasses in a concentrate supplement on milk yield of cows grazing Setaria grass pastures were investigated. Thirty Friesian cows, 6-7 years old with mean pre-experimental body weight of $428{\pm}6.5$ kg, in early stage of lactation were randomly allotted to five dietary treatments in a completely randomized design experiment that lasted for 126 days. Experimental dietary treatments were forage alone and forage/concentrate mixtures with molasses included at 0, 5, 10 or 15% levels designated as $T_1$, $T_2$, $T_3$, $T_4$ and $T_5$, respectively. The parameters studied were voluntary dry matter (DM) intake, average daily live weight change (LWC), milk yield, body condition score (BCS) and apparent nutrient digestibility coefficients. The DM and energy contents of Setaria grass were low compared to the concentrate diets. Fibre fractions-NDF, ADF, ADL, hemicellulose and cellulose; and gross energy were higher in concentrate mixtures than in the forage. Total DM intake (forage+concentrate mixtures) was significantly higher (p<0.001) in cows on the concentrate mixtures. LWC was not significantly different (p>0.05) between the cows. Average milk yields were significantly different (p<0.05) between cows. Fat corrected milk (FCM) was similar among cows in the treatments. BCS was better (p<0.001) in cows on concentrate mixtures. Digestibilities of DM, CP, NDF, ADF, ADL, OM, and energy were significantly higher (p<0.001) in cows on $T_2$, $T_3$, $T_4$ and $T_5$ than in those on $T_1$. There were no significant differences in the digestibility of DM, CP, NDF, ADF and ADL (p>0.001) in cows on concentrate mixtures. This study therefore demonstrated that lactating dairy cows in Fiji need a level of readily fermented energy source such as molasses in their diets; however, a level above 10% is not nutritionally suitable for lactating dairy cows. Based on data on production parameters-milk yield, fat corrected milk, body condition score and apparent nutrient digestibility coefficients-molasses levels that range between 5-10% are recommended, however, 10% is the best and therefore recommended for inclusion in the concentrate mixture of lactating dairy cows on a basal diet of Setaria sphacelata in Fiji.
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