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Products were prepared by incorporating modified starch extracted from selected traditional rice varieties. The products were standardized by incorporating modified rice starch served as test product group and without incorporating modified rice starch served as control product group. The developed products such as sweet cookies, masala cookies and khakhra were stored up to 90 days at room temperature (25-30°C) and 40 to 60 per cent of relative humidity. The packaging material used was 300 gauge low density polyethylene (LDPE). Samples from sweet cookies and masala cookies were drawn in triplicates for evaluation when fresh and after 15, 30, 45, and 60 days of storage, whereas samples from khakhra were drawn when fresh and after 30, 60, and 90 days of storage duration. The products were evaluated for their microbial load, moisture content, free fatty acid (FFA), and peroxide value (PV). Total bacterial colony count increased as the storage duration increased. No colony counts for E.coli were detected. The fungi colony counts were detected at 60 and 90 days of storage duration in sweet cookies and masala cookies respectively, whereas no fungi counts were detected in product Khakhra. Moisture, free fatty acid (FFA) and peroxide value (PV) of stored products significantly increased as the storage duration increased. The products such as sweet cookies, masala cookies and khakhra, developed by incorporating modified rice starch were acceptable up to 45, 60 and 90 days respectively.
Juliano BO. Rice starch: Production, properties and uses. In: Whistler RL, Bemiller JN, Paschall EF, editors. Starch: chemistry and technology. Academic Press, Inc, New York; 1984.
Shu X, Jia L, Ye H, Li C, Wu D. Slow digestion properties of rice different in resistant starch. J Agric. Food Chem. 2009;57:7552-7559.
Reddy V, Urooj A, Kumar A. Evaluation of antioxidant activity of some plant extracts and their application in biscuits. Food Chem. 2005;90:317-321.
Tate RL. Soil Microbiology. John Wiley and Sons, New York; 1995.
Bligh EG, Dyer WJ. Estimation of total lipids. Can J Biochem Physiol. 1959;37: 911.
Raguramulu N, Madhavan Nair K, Kalyanasundaran S. A manual of laboratory techniques, NIN Press, Jamal-Osmania, Hyderabad; 2003.
Nagi HPS, Kaur J, Dar BN, Sharma S. Effect of storage period and packaging on the shelf life of cereal bran incorporated biscuits. Am J Food Technol. 2012;7(5): 301-310.
Giwa OE, Ibrahim TA. Microbial, physical and sensory attribute of cookies produced from wheat flour fortified with Termitomyces robustus and spiced with (Alllium sativum). J Pharm Biomed Sci. 2012;18(18):1-4.
Emmanuel GO, Olubunmi BR, Atanlogun KS. Microbial, physical and sensory attribute of cookies produced from wheat flour fortified with Termitomyces robustus and spiced with curry leaves (Xylopia aethiopica). J Nat Sci Res. 2012;2(3):40-46.
Unhale DS, Sakhale BK, Ranveer RC. Pawar VD. Studies on shelf life extension of sorghum roti. Int. Res. J. 2012;19(2): 733-736.
WHO. Guideline value for food and drinking water. World Health Organization, Geneva; 1994.
Rahman MSM, Labuza TP. Water activity and food preservation. In: Rahman MS, Dekker M, editors. Handbook of Food Preservation. New York; 1999.
Aparicio-Saguila´Na A, Sonia GS, Yago-Ayerdib A, Vargas-Torresa A, Tovar J, Ascencio-Oterob TE, Bello-Pereza LA. Slowly digestible cookies prepared from resistant starch-rich lintnerized banana starch. J Food Compost Anal. 2007;20(3-4):175-181.
Slade L, Levine H. Beyond water activity. Recent advances based on an alternative approach to the assessment of food quality and safety. Crit Rev Food Sci Nutr. 1991; 30:115–360.
Bello-Perez LA, Sayago-Ayerdi SG, Mendez-Montealvo G, Tovar J. In vitro starch digestibility of banana starch cookies. Plant Food Hum Nutr. 2004;59: 79-83.
Demain MJ. Principles of Food Chemistry. 2nd ed. Van Nostrond Reinhold International Company Limited, London England; 1990.
Singh V, Okadome H, Toyoshima H, Isobe S. Ohtsubo, K. Thermal and physicochemical properties of rice grain, flour and starch. J. Agric. Food Chem. 2000;48:2639-2647.
Caponio F, Summo C, Clodoveo ML, Pasqualone A. Evaluation of the nutritional quality of the lipid fraction of gluten-free biscuits. Eur Food Res Technol. 2008; 227:135–139.
Anwar F, Anwar T. Mehmood Z. Methodological characterization of rice bran oil from Pakistan. Grasas Aceites. 2005;56:126-127.
Mildner-Szkudlarz S, Zawirska-Wojtasiak R, Obuchowski W, Go´Sli´Nski M. Evaluation of antioxidant activity of green tea extract and its effect on the biscuits lipid fraction oxidative stability. J Food Sci. 2009;74(8):362-370.
Euro communities regulation. Off J Eur Communities. 295 of November 13, EC Regulation; 2003.
Gordon MH. The development of oxidative rancidity. In: Pokorny J, Yanishlieva N, Gordon HM, editors. Antioxidants in food—practical applications. CRC Press, Washington; 2001.
Wasowicz E, Gramza A, Hes M, Jelen HH, Korczak J, Małeckam, Mildner-Szkudlarz S, Rudzinska M, Samotyja U, Zawirska-Wojtasiak R. Oxidation of lipids in food. Pol J Food Nutr Sci. 2004;13:87–100.