Vol 6, No 1 (2015) > Chemical Engineering >

An Optimum Mixture of Virgin Rice Straw Pulp and Recycled Old Newsprint Pulp and their Antimicrobial Activity

Mona A. Nassar, Hassan M. Awad, Mohamed El-Sakhawy, Youssef R. Hassan


Abstract: Abstract: Recycled fibres are important sources for paperboard industry. There are various approaches to enhance the strength of recycled fibres. These approaches include mechanical treatment, chemical addition, and physical fractionation as well as blending with virgin fibres. In this study, two types of deinked old newsprint (ONP) pulp were subjected to blending with virgin fibres of rice straw. The ONP pulp was blended with rice straw pulp at 4 intervals ranging from 0 to 100% addition. It was observed that blending ONP with rice straw pulp had enhanced the strength of the virgin fibre and vise versa. The modification of rice straw fibres was visually evaluated by scanning electron microscopy (SEM). It was observed that the addition of the flexible ONP pulp type2 seemed to fill up the voids in the paper sheet and created more bonding with rice straw fibres. Shrimps exoskeletons poweder, borax and cactus peel extract were added to paper board made from 50% rice straw+50% ONP type2 pulp at percent of 2% based on oven dry weight pulp. The antimicrobial activity of each of these three additives was studied.

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-Xu, E., and Zhou, Y. “Synergistic effects between chemical mechanical pulps and chemical pulps from hardwoods, Tappi J. (2007), 6(11), 4-9

-Karlsson, H., Beghello, L., Nilsson, L., and Stolpe, L., “Abaca as a reinforcement fiber for softwood pulp,” Tappi J. (2007) 6(10), 25-32.

-Tripathi S., Singh S., Gangwar A., Mishra O. P., Chakrabarti S. K., Bhardwaj N. K. & Varadhan R. Blending of banana stem with wheat straw and bagasse to enhance physical strength properties of paper. ,IPPTA (2013) ,121-128

-Jahan, M.S., Lee, Z.Z., Jin, Y., Organic acid pulping of rice straw, part-I: cooking. Turk. J. Agric. For. (2006). 30 (3), 231–239.

-Pan, X.-J., Sano, Y., Ito, T.,. Atmospheric acetic acid pulping of rice straw. II:

behavior of ash and silica in rice straw during atmospheric acetic acid pulping

and bleaching. Holzforschung (1999) 53 (1), 49–55.

-Jay T. Jeyasingam PRACTICAL EXPERIENCE ON PAPER MAKING WITH NON WOOD FIBERS International Consultant UNIDO, UNEP and ADB Longview, WA 98632

-Martin B. B. Hocking, , Handbook of Chemical Technology and Pollution Control, 3rd Edition, 463.

-Sundara R., Can. Temperature control is vital to maximization of the peroxide bleaching process. Canadian Chemical News, 50, ( 1998),15-17

-Song, Y.S., Park, H.J. and Komolprasert, VAnalytical procedure for quantifying five compounds suspected as possible contaminants in recycled paper/paperboard for food packaging, Journal of Agricultural and Food Chemistry, (2000), 48, 5856–5859.

-Triantafyllou, V.I., Akrida-Demertzi, K. and Demertzis, P.G. A study on the migration of organic pollutants from recycled paperboard materials to solid food matrices. Food Chemistry, (2007), 101, 1759–1768.

-Rudra S.G. , Singh V. , Jyoti S.D. , Shivhare U.S. Mechanical properties and antimicrobial efficacy of active wrapping paper for primary packaging of Fruits Food Bioscience

(2 0 1 3) 3, 4 9 – 5 8.

-Fitzgerald, D.J., Stratford, M. and Narbad, A. Analysis of the inhibition of food spoilage yeasts by vanillin. International Journal of Food Microbiology, (2003), 86, 113-122.

-Varadharajan -D. and Ramesh S. Antibacterial activity of commercially important aquaculture candidate shrimp chitin extracts against estuarine and marinepathogens from Parangipettai coast, south east coast of India Journal of Microbiology and Biotechnology Research (2012), 632-640.

-Dengbin Yu, Daming Yong, Shaojun Dong Toxicity detection of sodium nitrite, borax and aluminum potassium sulfate using electrochemical method Journal of Environmental Sciences (2013), 25(4) 785–790

- Yongcai Li ,Zhimin Yang, Yang Bi, Junlian Zhang, Di Wang Antifungal effect of borates against Fusarium sulphureum on potato tubers and its possible mechanisms of action Postharvest Biology and Technology (2012), 55–61

-YANG Yang, LIU Chong,QIN Ji-jie,WEI Xiao-ying,LI Hong Antimicrobial Activities of the Extracts from Cactus (2005), Baseboard physical properties IGGESUND PAPERBOARD

-Williams, S.T., Goodfellow, M., Alderson, G., Wellington, E.M.H., Sneath, P.H.A. and Sackin, M.J. Numerical classification of Streptomyces and related genera. Journal of General Microbiology (1983). 129, 1743–1813.

-Moosdeen, F., Williams, J.D. & Secker, A. Standardization of inoculum size for disc susceptibility testing: a preliminary report of a spectrophotometric method. Journal of Antimicrobial Chemotherapy (1988). 21, 439-43.

-www.eucast.org, www.jac.oupjournals.org/content/vol48/suppl_1/2001

- McGinnis, G. D., and Shafizadeh, F. (1980). “Cellulose and Hemicellulose,” In:

Pulp and Paper Chemistry and Chemical Technology , J. P. Casey (ed.), Vol. 1, 3rd

Edn.,Wiley-Interscience, New York, Chap. 1.

-Ibrahim R., Structural, mechanical, and optical properties of recycled paper blended with, oil palm empty fruit bunch pulp, Journal of Oil Palm Research (2003), 28-34