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Effect of light irradiation on the antibacterial activity of compounded papers containing wasted tea leaves
Journal of Wood Science volume 56, pages 299–306 (2010)
Abstract
The endurance of the antibacterial properties of compounded papers containing wasted green tea leaves needs to be examined before considering these papers for long-term use. Hence, compounded papers containing 60 wt% wasted green tea leaves were irradiated for 1–200 h using a xenon lamp to examine the effect of irradiation on antibacterial properties of the paper. Irradiation for 20 h (cumulative ultraviolet dose at 365 nm, 6.67 × 106 J/m2) or longer was found to greatly increase the antibacterial activity of the paper to a level at which no bacterial cell was confirmed to be viable. The paper was also covered with various glass filters and irradiated for 1 h. Irradiation exclusively with visible rays did not significantly affect the antibacterial activity of the paper, whereas irradiation exclusively with ultraviolet rays, even for a short time, greatly increased the antibacterial activity.
References
Takahashi T, Kasai W, Kondo T, Yokota H, Kunitake T (2008) Structure and mechanical properties of papers containing ground wasted tealeaves (in Japanese). Sen’i-Gakkaishi 64:252–258
Kumabe M (2008) Development of corrugated cardboard made from used tea leaves complying with food recycling law. JPI J 46:779–781
Takahashi T, Kondo T, Kasai W, Yokota H, Kunitake T (2007) Preparation of compounded papers using wasted tea leaves (in Japanese). Sen’i-Gakkaishi 63:256–263
Takahashi T, Kasai W, Kondo T, Yokota H, Kunitake T (2008) Antibacterial activity of compounded papers using wasted green tealeaves produced by paper-making method (in Japanese). Sen’i-Gakkaishi 64:358–365
Sato T, Morikawa Y. Published Japanese Patent, No. 2008-255515
Adelstein PZ, Zinn ED, Reilly J (2003) Effect of atmospheric pollution on paper stability. J Pulp Paper Sci 29:21–28
Seino T, Ona T, Yoshioka A, Takai M, Kojima Y, Ishikura Y, Ishida Y, Ohtani H (2004) Characterization of photo-yellowing trigger compounds repressing paper recyclability. Trans Mater Res Soc Jpn 29:2093–2096
Cabrera C, Artacho R, Gimenez R (2006) Beneficial effects of green tea: a review. J Am Coll Nutr 25:79–99
Pulps: Preparation of laboratory sheets for physical testing. JIS-P8222
Building construction. Jointing products: Determination of adhesion/cohesion properties of sealants after exposure to heat, water and artificial light through glass. ISO-11431
Dentistry: Polymer-based restorative materials. ISO-4049
Testing for antibacterial activity textile products and efficacy. JIS-L1902
Gohya Y, Nakamura S (1994) Simplified and rapid enumeration of proteolytic bacteria in water using the plate-MPN technique. Suisanzoshoku 42:567–570
Kelling H, Hinz U (1990) Von der Farbempfindung zur Farbmessung. Getreide Mehl Brot 44:314–316
Dyer JR (1991) Infrared spectroscopy. In: Applications of absorption spectroscopy of organic compounds. Prentice Hall, Englewood Cliffs, NJ, pp 22–57
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Takahashi, T., Aso, Y., Kasai, W. et al. Effect of light irradiation on the antibacterial activity of compounded papers containing wasted tea leaves. J Wood Sci 56, 299–306 (2010). https://doi.org/10.1007/s10086-009-1103-8
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DOI: https://doi.org/10.1007/s10086-009-1103-8