Kim, Hong-Kyu;Kim, Yong-Gyun;Lee, Byung-Joo;Lee, Ka-Soon;Yang, Eyu-Seog;Park, Myung-Soo;Yoo, Young-Bok;Kim, Hong-Gi
The Korean Journal of Mycology
/
v.36
no.1
/
pp.58-62
/
2008
'Miso', a new variety of oyster mushroom was developed for the bottle culture at the Chungnam Agricultural Research & Extension Services. Its mycelium grew rapidly with $8.4{\sim}8.6\;mm/day $ at $25{\sim}28^{\circ}C$ on PDA medium. The optimum pH of the mycelial growth was pH 5.0. It took 24 days for the primitive primordium formation after inoculation on pine sawdust media mixed with 20% wheat bran. Fruiting body color was white, and the shape of pileus was convex-umbonate. In the bottle culture, the yield was 115.7 g per 850 ml bottle. Stipe length was about 54 mm, the number of stipe per bottle was 18.1, the size of pileus was 28 mm, and gill was crowded. The moisture content of 'Miso' was lower than that of Jangan No.5 and Wonhyeong No.1, and contents of protein, ash and sugar of 'Miso' were higher than those of other varieties, and tannin acid content of 'Miso' was lower than that of others. On the basis of AFLP analysis, the 'Miso' was distinct not only from Wonhyeong No.1, but also from their closest relative, oyster mushrooms.
Journal of the Society of Cosmetic Scientists of Korea
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v.30
no.4
s.48
/
pp.509-514
/
2004
The fruit or root of Ulmus davidiana var. Japonica and its extract has traditionally been used as anti inflammatation medicines as well as a remedy of the digestive ulcer for a long time. Ulmus davidiana var. Japonica has also been used to cure palliative and diuresis, because it contains lot of mucus and tannin. In this study, we examined the moisturizing effect and anti-inflammation effect of polysaccharides extracted from Ulmus davidiana var. Japonica to investigated whether it can be used as a cosmetic ingredient or not. The polysaccharides were extracted from Ulmus davidiana var. Japonica. Then the hydrolyzed was obtained through the hydrolysis. It has been ascertained that the polysaccharides we mainly composed of rhamnose, galactose, and glucose through HPLC experiments, and it has 20,000 of the molecular weight and 89.3 dL/g of intrinsic viscosity In a moisturizing test of measuring water loss in a desiccator and moisture content by Comeometer CM820, Ulmus davidiana root extract showed a similar moisturizing effect as hyaluronic acid. And its anti-inflammation effect on carrageenin-induced edema evaluated by measuring the thickness of swelling over paw induced by carrageenin (25 uL of $2\%$ carrageenin saline injection), the $\%$ swelling over paw treated with Ulmus davidiana root extract was much less than that of paw treated with carrageenin only. The anti-inflammatory effect of Ulmus davidiana root extract was almost similar to that of ketoprofen. These results can say that Ulmus davidiana root extract can be effectively used as a cosmetic ingredient.
The abatement of methane emission from ruminants is an important global issue due to its contribution to greenhouse gas with carbon dioxide. Methane is generated in the rumen by methanogens (archaea) that utilize metabolic hydrogen ($H_2$) to reduce carbon dioxide, and is a significant electron sink in the rumen ecosystem. Therefore, the competition for hydrogen used for methanogenesis with alternative reductions of rumen microbes should be an effective option to reduce rumen methanogenesis. Some methanogens parasitically survive on the surface of ciliate protozoa, so that defaunation or decrease in protozoa number might contribute to abate methanogenesis. The most important issue for mitigation of rumen methanogenesis with manipulators is to secure safety for animals and their products and the environment. In this respect, prophylactic effects of probiotics, prebiotics and miscellaneous compounds to mitigate rumen methanogenesis have been developed instead of antibiotics, ionophores such as monensin, and lasalocid in Japan. Nitrate suppresses rumen methanogenesis by its reducing reaction in the rumen. However, excess intake of nitrate causes intoxication due to nitrite accumulation, which induces methemoglobinemia. The nitrite accumulation is attributed to a relatively higher rate of nitrate reduction to nitrite than nitrite to ammonia via nitroxyl and hydroxylamine. The in vitro and in vivo trials have been conducted to clarify the prophylactic effects of L-cysteine, some strains of lactic acid bacteria and yeast and/or ${\beta}$1-4 galactooligosaccharide on nitrate-nitrite intoxication and methanogenesis. The administration of nitrate with ${\beta}$1-4 galacto-oligosaccharide, Candida kefyr, and Lactococcus lactis subsp. lactis were suggested to possibly control rumen methanogenesis and prevent nitrite formation in the rumen. For prebiotics, nisin which is a bacteriocin produced by Lactococcus lactis subsp. lactis has been demonstrated to abate rumen methanogenesis in the same manner as monensin. A protein resistant anti-microbe (PRA) has been isolated from Lactobacillus plantarum as a manipulator to mitigate rumen methanogenesis. Recently, hydrogen peroxide was identified as a part of the manipulating effect of PRA on rumen methanogenesis. The suppressing effects of secondary metabolites from plants such as saponin and tannin on rumen methanogenesis have been examined. Especially, yucca schidigera extract, sarsaponin (steroidal glycosides), can suppress rumen methanogenesis thereby improving protein utilization efficiency. The cashew nutshell liquid (CNSL), or cashew shell oil, which is a natural resin found in the honeycomb structure of the cashew nutshell has been found to mitigate rumen methanogenesis. In an attempt to seek manipulators in the section on methane belching from ruminants, the arrangement of an inventory of mitigation technologies available for the Clean Development Mechanism (CDM) and Joint Implementation (JI) in the Kyoto mechanism has been advancing to target ruminant livestock in Asian and Pacific regions.
Mui, Nguyen Thi;Ledin, Inger;Uden, Peter;Binh, Dinh Van
Asian-Australasian Journal of Animal Sciences
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v.15
no.5
/
pp.699-707
/
2002
Diets with foliage of Flemingia (Flemingia macrophylla) or Jackfruit (Artocapus heterophyllus were fed to goats with the objective to study nitrogen (N) balance and effect of a daily supplementation of polyethylene glycol (PEG) on intake and digestion. In experiment 1, three male Alpine${\times}$Jamnapary goats with initial weights varying from 26.9 to 27.7 kg were used in a $3{\times}3$ Latin square design in the dry season. Three Alpine${\times}$Bachthao crosses, 15.3-16.7 kg, were used in the same design in the wet season. The three diets were based on chopped whole sugar cane complemented with the two green foliages, Jackfruit and Flemingia, or soybean meal (SBM). The level of dry matter (DM) offered was 4% of body weight (BW), 2.7% as foliage and 1.3% as chopped whole sugar cane. The amount of SBM offered was calculated to give the same amount of crude protein (CP) as the foliages. Each experimental period lasted 32 days (14 days for adaptation, 7 days for collection and 10 days for rest). Feed intake, apparent digestibility of DM, organic matter (OM), CP, neutral detergent fiber (NDF) and acid detergent fiber (ADF) and retained nitrogen (N) were measured by total faecal and urine collection. In experiment 2, four male goats (Alpine${\times}$Jamnapary) with initial weights from 17.1 to 23.1 kg were used in a $4{\times}4$ Latin square design. The four treatments were Jackfruit or Flemingia with or without addition of PEG, which was fed at a level of 5 g/goat and day by mixing with a small amount of rice bran. Each experimental period lasted 15 days (8 days for adaptation, 7 days for collection). Measurements were done as in experiment 1. The DM digestibility was highest (65.9-74.3%) for goats fed the SBM diet in both the dry and wet season. The DM digestibility of goats fed the Jackfruit and the Flemingia diets was similar in both the dry (58.6-59.2% respectively) and the wet season (53.9-56.1% respectively). The CP digestibility was highest (73.0-73.6%) for the SBM diet followed by the Jackfruit diet (47.0-38.5%) and was lowest (36.8-30.0%) for the Flemingia diet in both dry and wet seasons, respectively. The NDF digestibility was low for both the Jackfruit (36.4%) and Flemingia (38.0%) diets in the wet season. All diets resulted in a positive N balance. The N retention was highest (0.465-0.604 g/kg $W^{0.75}$) in the SBM diets and lowest (0.012-0.250 g/kg $W^{0.75}$) in the Flemingia diet. Addition of PEG had no effect on feed intake for any of the diets. PEG added in the Flemingia diet had a positive effect only on NDF digestibility, but the digestibility of the Jackfruit diet was significantly increased. Supplementation with PEG reduced digestibility and N retention of Flemingia, possibly because of the low tannin level, but increased digestibility and N retention for Jackfruit foliage.
This study was designed to investigate the effects of roasting temperatures on the antinutritional factors and functional properties of sesame protein isolates. The protein contents a sesame protein isolates (SPI) prepared at roasting temperatures of 5$0^{\circ}C$, 10$0^{\circ}C$, 15$0^{\circ}C$ and 20$0^{\circ}C$ were 65.5%, 66.6%. 68.9% and 64.1%, respectively. Total phenolic compounds, condensed tannin and phytate contents of SPI was increased from 5$0^{\circ}C$ to 20$0^{\circ}C$. From color measurements, higher roasting temperature decreased 'L' and 'b' values significantly, but 'a' value was increased. The bulk density, fat absorption and water absorption of SPI was increased as the temperature of roasting was increased. Sesame protein isolates prepared by roasting at 5$0^{\circ}C$, 10$0^{\circ}C$ and 15$0^{\circ}C$ had higher emulsifying activity than those prepared by roasting at 20$0^{\circ}C$. Foaming capacity of SPI was not changed by roasting up to 10$0^{\circ}C$, but this property was reduced dramatically when roasted at 20$0^{\circ}C$.
Journal of the Korean Society of Food Science and Nutrition
/
v.32
no.6
/
pp.833-839
/
2003
Quantitaties of flavonoids were determined by HPLC in three different ethanol extract (50, 70 and 95%, v/v) from Korean cherry. Antimicrobial activity of the ethanol extract and its solvent fraction (ethyl acetate and n-butanol fractions) against Staphylococcus aureus (ATCC 6538) and Staphylococcus epidermidis (ATCC 12228) was evaluated using MIC and disk test. Additionally, UV protective effect was also determined. The highest flavonoid quantity was found in 70% ethanol extract of Korean cherry. The quantities of quercitrin were 12.7 mg% and 2.1 mg% in ethyl acetate fraction and in buthanol fraction, respectively. In addition, the flavonoid in 70% (v/v) ethanol extract of Korean cherry included 14.9 mg% of quercitrin, 6.0 mg% of tannic acid and 5.2 mg% of catechin. Therefore, it was confirmed that main flavonoid of Korean cherry was quercitrin. For antimicrobial activity of ethanol extract of Korean cherry against Staphylococcus aureus (ATCC 6538) and Staphylococcus epidemidis (ATCC 12228), MIC and disk test using ethyl acetate fraction and butanol fraction were carried out. As a result, ethyl acetate fraction with higher quantity of flavonoid showed higher antimicrobial activity. Therefore, it was confirmed that the higher antimicrobial activity was brought about by flavonoid in Korean cherry. For UV protective effect of Korean cherry, ethanol extract showed the absorption zone of ultraviolet rays in 210∼380 nm including 290∼320 nm that is the wave length of UV-B harmful to the skin of human body. The pattern is the same as the absorption zone of 220∼300 nm in catechin and 210∼400 nm in quercitrin. Then, the functionalities of catechin and quercitrin were anticipated. It is expected that quercitrin in Korean cherry has the antimicrobial effect and UV protective effect related to the skin.
Background: This experiment aimed at assessing polyphenol-rich plant biomass to use in complete feed making for the feeding of ruminants. Methods: An in vitro ruminal evaluation of complete blocks (CFB) with (Acacia nilotica, Ziziphus nummularia leaves) and without (Vigna sinensis hay) polyphenol rich plant leaves was conducted by applying Menke's in vitro gas production (IVGP) technique. A total of six substrates, viz. three forages and three CFBs were subjected to in vitro ruminal fermentation in glass syringes to assess gas and methane production, substrate degradability, and rumen fermentation metabolites. Results: Total polyphenol content (g/Kg) was 163 in A. nilotica compared to 52.5 in Z. nummularia with a contrasting difference in tannin fractions, higher hydrolysable tannins (HT) in the former (140.1 vs 2.8) and higher condensed (CT) tannins in the later (28.3 vs 7.9). The potential gas production was lower with a higher lag phase (L) in CT containing Z. nummularia and the component feed block. A. nilotica alone and as a constituent of CFB produced higher total gas but with lower methane while the partitioning factor (PF) was higher in Z. nummularia and its CFB. Substrate digestibility (both DM and OM) was lower (P < 0.001) in Z. nummularia compared to other forages and CFBs. The fermentation metabolites showed a different pattern for forages and their CFBs. The forages showed higher TCA precipitable N and lower acetate: propionate ratio in Z. nummularia while the related trend was found in CFB with V. sinensis. Total volatile fatty acid concentration was higher (P < 0.001) in A. nilotica leaves than V. sinensis hay and Z. nummularia leaves. It has implication on widening the forage resources and providing opportunity to use forage biomass rich in polyphenolic constituents in judicious proportion for reducing methane and enhancing green livestock production. Conclusion: Above all, higher substrate degradability, propionate production, lower methanogenesis in CFB with A. nilotica leaves may be considered useful. Nevertheless, CFB with Z. nummularia also proved its usefulness with higher TCA precipitable N and PF. It has implication on widening the forage resources and providing opportunity to use polyphenol-rich forage biomass for reducing methane and enhancing green livestock production.
The berry thinning was a useful practice to reduce bunch size and to alter bunch shape for improving fruit quality. The grape cv. 'Muscat Bailey A' bunches were removed to find berry thinning effect on the bunch, in the apical end of the main stem about 4~6 laterals or conventional treatment and then compared a quality of fruit and wine between the treatments. Bunch weights on the different berry thinning treatment were in the range of 300 to 650g and conventional treatment was 550 to 750g. As a result, according to decreased lateral number of bunch in the treatments, total soluble sugar was increased but total acid was decreased. Our results was shown that wine color and taste components such as total anthocyanin, polyphenol and tannin were depended mainly by berry thinning. Also Berry thinning treatments of bunches was ranked higher sensory score than conventional ones.
To utilize soybean leaf, which is a waste product in soybean production, as a value-added food material, this study aimed to investgate the extraction efficiency of isoflavone from soybean leaf and to characterize physicochemical properties of the extract. Maximum isoflavone content of $59.74{\pm}4.54mg/l$ was obtained from soybean leaf extracted at $90^{\circ}C$ for 12 h. DPPH (1,1-diphenyl-2-pricylhydrazyl) radical-scavenging activity and total polyphenol contents reached maximum levels of $67.26{\pm}3.64%$ and $1,688.68{\pm}97.37{\mu}g/ml$ chlorogenic acid equivalent, respectively. Based on the contents of isoflavone and total polyphenol, and DPPH radical-scavenging activity, optimum extraction conditions for soybean leaf using water as solvent were $90^{\circ}C$ and 12 h.
This study was conducted to investigate the potential of sea buckthorn leaf (SBL) as a natural antioxidant. SBL was extracted using different ethanol ratios (0, 40, 80, and 100%), and the resulting extracts were examined for their antioxidant contents and antioxidant activities using various methods. The 40% and 80% ethanol extracts (EEs) showed higher total polyphenol contents of 285.06 and 285.64 mg GAE/g respectively, than those in other solvents, and as the ethanol concentration increased, other antioxidant contents of the extracts increased. The 40% and 80% EEs recorded the highest radical scavenging activities against DPPH, superoxide-, ABTS+, nitrite scavenging activity (NO-), and reducing power (RP). The NO- and RP of the SBL EEs were higher than those of ascorbic acid or tannin, which are known as representative antioxidants. The results of this study, suggest that SBL is a potential source of natural antioxidants.
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