• YAKHAK HOEJI
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• v.51 no.6
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• pp.500-507
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• 2007

To investigate the possibility of development as a whitening agent using bamboo extracts (Phyllostachys nigra var. henonis), we measured DPPH assay, NBT/XO assay, intracellular ROS scavenging assay, tyrosinase assay and MSH-induced melanin production in B-16 cells. Bamboo extracts had dose-dependently anti-oxidant activity in DPPH, NBT/XO and intracellular ROS assay. Bamboo extracts appear to inhibit xanthine oxidase directly. Bamboo extracts inhibited not only purified tyrosinase activity but also inhibited tyrosinase activity and melanin production in B16 melanoma cells stimulated by $1{\mu}M\;{\alpha}$-MSH. Anti-oxidant activity and cytotoxicity of ethyl acetate fraction was more potent than those of water fraction, whereas whitening effect of water fraction was stronger than ethyl acetate fraction. Therefore, these results suggest that water fraction of bamboo extracts may be useful for the development as whitening agents reducing cytotoxicity.

• KSBB Journal
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• v.27 no.2
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• pp.131-135
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• 2012

To develop potential cosmetic ingredients with antimicrobial and antioxidant activities of 4 Korean bamboo species (P. bambusoides, P. nigra var. henonis, P. pubescens and Sasa coreana) using three different extraction methods-water, ethanol and supercritical fluid extraction. Antimicrobial activities and DPPH assay have been examined. Among the antimicrobial activities against two test strains, Escherichia coli and Staphylococcus aureus, ethanol extracts of 3 bamboo trees, P. bambusoides, P. nigra var. henonis, and P. pubescens, showed stronger than those of supercritical extracts. However, 4 bamboo supercritical extracts showed dose-dependent increase in antioxidant activity by DPPH assay. These results suggest that water fraction of bamboo extracts may be useful for the cosmetic ingredient with low cytotoxicity.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.2
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• pp.206-217
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• 2011

The dyeing properties of cotton fabrics with bamboo colorants were studied by investigating the analysis of bamboo colorants, the effect of dyeing conditions (dye concentrations, dyeing temperatures and times on dye uptakes), effect of mordants, and color change. The various colorfastness of dyed fabrics were evaluated for practical use; in addition, the antimicrobial ability, ultraviolet-cut ability, and deodorant ability were also estimated. In the UV-Visible spectrum, the wavelength of the maximum absorption for bamboo stems and leaves extracts was found to be 280nm and 295nm, respectively; in addition, bamboo colorants produced a yellow color. From the FT-IR and GC-MS results, it was assumed that the chromophoric substance from bamboo extracts was composed of flavones substances with tricin. An increased dyeing concentration resulted in a larger dye uptake and a Freundlich absorption isotherm was obtained. A larger dye uptake occurred as the dyeing time and temperature increased. The post-mordanting was more effective than pre-mordanting. Mordants, Fe and N.Fe, were effective for an increased dye uptake. The color of fabrics mordanted with Cu and N.Cu changed to GY. Regardless of mordanting, the colorfastness on the washing of dyed fabrics showed a low rating compared to other fastness. Mordanting adversely affected the lightfastness of dyed fabric. The dyed fabric showed very good antimicrobial abilities of 99.9%. In addition, the ultraviolet-cut ability and deodorant ability improved in cotton fabric dyed with bamboo extracts.

• KSBB Journal
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• v.32 no.1
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• pp.1-8
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• 2017

Bamboo is a plant belonging to the Gramineae family, and can be used as valuable bioresources for many industrial applications. Bamboo has some useful properties and having a lot of beneficial uses such as a bamboo ware, agriculture material, building construction material, pulpwood, etc. Bamboo stem has a large amount of active ingredients that those of bamboo leaves. The stem of bamboo can be processed into various biomaterials including cellulose and lignin, and sometimes uses as foods, cosmetics and medicines using stem extracts with polyphenol compounds. For cosmetic applications of bamboo stems, especially, the constituents of bamboo stem are suitable for inner beauty (cosmetic food) products showing antioxidant and UV-protecting activities. This review summaries the recent literature data and discusses the versatile uses of bamboo stem and its extracts mainly for cosmetic application.

• Food Science and Preservation
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• v.8 no.4
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• pp.475-480
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• 2001

Yields of bamboo extracts were 1.0∼1.5% in stalks and 3.1∼3.2% (w/w) in leaves. Electron donating ability of extracts from stalks was 62% in Maengjongjuk, 55% in Somdae and 52% in Wangdae, while that of leaf extracts showed very low level. On the contrary, nitrite-scavenging activity was higher in leaf extracts than stalk extracts, and the activity was 63, 57 and 55% in leaf extracts of Maengjongjuk, Wangdae and Somdae, respectively. Antimicrobial activity was examined against 7 major strains which cause food poisoning, and extracts of bamboo stalks showed somewhat activity, while leaf extracts showed merely or no activity according to strains. But all extracts showed relatively strong antimicrobial activity against Staphylococcus aureus and Vibrio parahaemolyticus, and extracts of Somdae stalks and Maengjongjuk leaves showed antimicrobial antimicrobial activity against those strains on 100${\mu}\ell$/disc concentrate.

• Korean Journal of Veterinary Service
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• v.37 no.2
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• pp.111-122
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• 2014

The present study was designed to explore the antioxidant effect of Bamboo powder and its immunoreactivity in pigs. We investigated the functional properties of Bamboo extracts by means of measuring the contents of total polyphenols and flavonoid as well as determining ABST, DPPH radical scavenging activity, and hydroxyl radical scavenging activity and anticancer activity. The total phenolic compound and flavonoids contents of Bamboo extracts were 171.25 mg/g and 127.5 mg/g, respectively. The DPPH radical, hydroxyl radical, ABST radical scavenging activity of Bamboo extracts were 17.3%, 12.5% and 21.5%, respectively. Evidenced by MTT and cell cycle assay, Bamboo dose-dependently inhibited the cell proliferation and induced G0/G1-phase arrest in CHO cells at concentrations of 100, 250, and 500 ${\mu}g/ml$ Bamboo extracts. More than 80% of apoptotic cells were observed by staining with annexin V in 500 ${\mu}g/ml$ Bamboo-treated CHO cells, indicating that Bamboo had potent anticancer activities. Next, to investigate the effect of Bamboo on cytokine, immunoglobulin concentration, and blood compositions, flatting pigs were fed with Bamboo powder for 38 days. Flatting pigs were divided into 4 groups; basal diet (control), basal diet supplemented with 1% Bamboo powder (T1), 2% Bamboo powder (T2), and 3% Bamboo powder (T3). The level of hemoglobin increased in the all Bamboo-fed groups compared with the normal control group. In particular, platelet levels in the all Bamboo-treated groups increased by approximately 90% compared with the levels from pig on a normal control. Serum levels of immunoglobulins (IgG, IgA) in the pigs fed Bamboo powder were modestly increased, and the interferon-${\gamma}$ level also was strongly increased in 2% or 3% Bamboo-fed groups compared with the levels in control groups. Together, these results demonstrated that Bamboo extracts had an effective capacity of scavenging for ABTS, DPPH, and hydroxyl radicals and showed correlation with potent phenol and flavonoid contents, thus suggesting its antioxidant potential. Moreover, administration of Bamboo in 2~3% improved blood parameters and platelets, and especially immunity-related ones such as IgG, IgA, and interferon-${\gamma}$, leading to be potential feed additives in flatting pigs.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.3
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• pp.336-346
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• 2011

Dyeing properties of protein fiber with bamboo colorants were studied by investigating the effect of dyeing conditions such as dye concentration, dyeing temperatures, times on dye uptakes, effect of mordants, and color change. The various colorfastness of dyed fabrics were evaluated for practical use. In addition, the antimicrobial ability, ultraviolet-cut ability, and deodorant ability were estimated. The dye uptake increased as the dyeing concentration increased. Bamboo colorants showed relatively good affinity to protein fiber and produced a yellow color. Dye uptake increased as the dyeing time and temperature increased. Post-mordanting was more effective than pre-mordanting. Mordants, Fe and N.Fe, were effective for increasing dye uptake. The color of fabric mordanted with Cu and N.Cu changed to GY. Colorfastness of dyed fabrics showed a relatively good rating, and mordanting had no significant effect on colorfastness. Dyed silk fabric showed very good antimicrobial abilities of 99.9%. Also, ultraviolet-cut ability and deodorant ability were improved in silk fabric dyed with bamboo extracts.

• Journal of Physiology & Pathology in Korean Medicine
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• v.17 no.1
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• pp.151-156
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• 2003

This study was carried out to investigate the optimal mixed extract with Bambusae Caulis in Liquamen in order to strengthen anti-diabetic effects on the hyperglycemia induced by streptozotocin in mice. The original Bambusae Caulis in Liquamen filtered and refined. The effects of Bambusae Caulis in Liquamen and Mixed extracts(Bamboo Juice) with Bambusae Caulis in Liquamen were administered to mice for 4weeks and its anti-diabetic effect examined. Mice used in this experiment were divided into three groups and saline(control), Bamboo Juice mixed with refined Bambusae Caulis in Liquamen(BJ＋BCL.D) and distrilled water mixed with refined Bambusae Caulis in Liquamen(DW＋BCL.D) were given orally for 28days respectively. And then, experemental groups were observed in terms of blood sugar, creatinine, BUN and GPT. The amount of glucose was significantly decreased in the Bambusae Caulis in Liquamen and Mixed extracts(Bamboo Juice) with Bambusae Caulis in Liquamen-treated groups compared with the control group(P<0.01). The amount of creatinine, BUN and GPT did not show any differences among Control, BJ＋BCL.D and DW＋BCL.D groups. In conclusion. it was found that Bambusae Caulis in Liquamen and Mixed extracts(Bamboo Juice) with Bambusae Caulis in Liquamen were nontoxic to kidney and liver and also effective on murine hyperglycemia induced with STZ. Mixed extracts(Bamboo Juice) were more effective for decreasing blood glucose than Bambusae Caulis in Liquamen D. BJ＋BCL.D can be used as optimal mix material with Bambusae Caulis in Liquamen D for control Diabetes.

• Fashion & Textile Research Journal
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• v.14 no.4
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• pp.648-659
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• 2012

This research categorizes fundamental data needed to develop eco-friendly fabrics treated with bamboo leaf & pine leaf extracts. The effect of mordant on those fabrics was analyzed through the measurement of mechanical properties and the estimation of primary hand values for cotton and silk fabrics dyed with bamboo leaf and pine leaf extracts that were later treated with various mordants. When cotton was dyed with bamboo leaves and pine leaves extracts, EM, WT, 2HB, 2HG, 2HG5, LC, T, and W increased however, RT, SMD, and RC decreased compared to raw cotton fabric. The B, G, and MIU increased after mordant treatment to the dyed cotton and resulted in a stiffer and rougher cotton's hand. EM, WT, RT, MIU, WC, T, and W increased (in terms of silk); however, LT, B, 2HB, G, 2HG, 2HG5, MMD, SMD, and LC decreased compared to raw silk fabric. Similar to the dyed cotton, mordant treatment increased the MIU and LC of dyed silk subsequently, the hand became stiffer and rougher. A greater tannin adsorption results in an increased mechanical property and the primary hand value. For both fabrics, mordant treatment made its smoothness drop. However, the scale of drop for cotton was significant, while the scale of the drop for silk was minor. In terms of type of mordant, femordant and natural-mordant treatment influenced the tensile, shear, surface properties of fabrics, and primary hand values more than Cu-mordant and synthetic-mordant in addition, this increased the stiffness, hardness, and roughness of fabrics.

• Journal of Food Hygiene and Safety
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• v.18 no.3
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• pp.113-117
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• 2003

In order to develop a antimicrobial agent, bamboo oil was extracted by high temperature suction from dired bamboo truk and then antimictobial activities against Trichophyton and Pityrosporum are investigated. 1. Bamboo oil showed the strongest antimicrobial effect on Trichophyton mentagrophytes > Epidermophyton floccusum > Trichophyton rubrun. Bamboo oil showed the strongest antimicrobial activity on Trichophyton mentagrophytes. 2. Bamboo oil showed the strongest antimicrobial effect on Pityroporum ovale 75 > Pityrosporum ovale 77. Bamboo oil showe the strongest antimicrobial activity on Pityroporum ovale 75.3 Antimicrobial effect in 50%-ethanol extracts of bamboo oil are similar to 100%-bamboo oil.