Antioxidant activity, chemical and nutritional properties of raw and processed purple-fleshed sweet potato (Ipomoea batatas Lam.)

References

• [AOAC] Association of Official Agricultural Chemists. (1980). Official methods of analysis (pp. 1080). Washington, DC: Pergamon Press.
   Google Scholar
• [BAS] Bureau of Statistics. (2011, October 6). Sweet potato production in the Philippines. Retrieved from http://countrystat.bas.gov.ph/selection.asp
   Google Scholar
• [DOST-FNRI] Department of Science and Technology - Food and Nutrition Research Institute. (2002). Recommended energy and nutrient intakes Philippines (pp. 341, 370). Manila, Philippines: Food and Nutrition Research Institute - Department of Science and Technology. 2002 ed.
   Google Scholar
• [DOST-FNRI] Department of Science and Technology - Food and Nutrition Research Institute. (2016). Philippine nutrition facts and figures 2015: Updating of nutritional status of Filipino children and other population groups overview. Manila, Philippines: Food and Nutrition Research Institute - Department of Science and Technology.
   Google Scholar
• [PAS] Philippine Statistics Authority. (2019, June 26). Major vegetables and root crops quarterly bulletin, January-March 2019. Retrieved from https://psa.gov.ph/vegetable-root-crops-main/sweet-potato
   Google Scholar
• [WFP] World Food Programme. (2009). Comprehensive food security and vulnerability analysis guidelines (1st ed.). Italy: United Nations World Food Programme.
   Google Scholar
• Alexandrators, N. (1995). World agriculture: Towards 2010. A FAO study. New York (NY): FAO and John Wiley and Sons.
   Google Scholar
• Areco, M. M., Dos Santos Afonso, M., & Valdman, E. (2007). Zinc biosorption by seaweed illustrated by the zincon colorimetric method and the Langmuir isotherm. Journal of Chemical Education, 84(2), 302. doi:10.1021/ed084p302
   Web of Science ®Google Scholar
• Chlopicka, J., Pasko, P., Gorinstein, S., Jedryas, A., & Zagrodzki, P. (2012). Total phenolic and total flavonoid content, antioxidant activity and sensory evaluation of pseudocereal breads. LWT – Food Sciemce and Technology, 46(2), 548–13.
   Web of Science ®Google Scholar
• Codex Alimentarius Commission. (2007). Food labelling (5th ed.). Rome, Italy: Food and Agriculture Organization of the United Nations and World Health Organization (FAO/WHO).
   Google Scholar
• Dansby, M. Y., & Bovell-Benjamin, A. C. (2003). Production and proximate composition of a hydroponic sweetpotato flour during extended storage. Journal of Food Processing and Preservation, 27(2), 153–164. doi:10.1111/jfpp.2003.27.issue-2
   Web of Science ®Google Scholar
• Doymaz, İ., & Pala, M. (2003). The thin-layer drying characteristics of corn. Journal of Food Engineering, 60(2), 125–130. doi:10.1016/S0260-8774(03)00025-6
   Web of Science ®Google Scholar
• Eluagu, E. N., & Onimawo, I. A. (2010). Effect of processing on the mineral composition and antinutritional factors of orange fleshed sweet potato (Ipomoea batatas L. Lam) flours. Electronic Journal of Environmental, Agricultural and Food Chemistry, 9(6), 1000–10051.
   Google Scholar
• Fan, L., Zhang, S., Yu, L., & Ma, L. (2006). Evaluation of antioxidant property and quality of breads containing Auricularia auricular polysaccharide flour. Food Chemistry, 101(3), 1158–1163. doi:10.1016/j.foodchem.2006.03.017
   Web of Science ®Google Scholar
• Fernandez-San Valentin, C., & Berja, J. G., Jr. (2012). Philippine food and nutrition atlas. Philippines: World Food Program.
   Google Scholar
• Haruna, M., Udobi, C. E., & Ndife, J. (2011). Effects of added brewers dry grain on the physico-chemical, microbial and sensory quality of wheat bread. American Journal of Food and Nutrition, 1(1), 39–43. doi:10.5251/ajfn.2011.1.1.39.43
   Google Scholar
• Hathorn, C. S., Biswas, M. A., Gichuhi, P. N., & Bovell-Benjamin, A. C. (2008). Comparison of chemical, physical, micro-structural, and microbial properties of breads supplemented with sweet potato flour and high-gluten dough enhancers. LWT - Food Science and Technology, 41(5), 803–815. doi:10.1016/j.lwt.2007.06.020
   Web of Science ®Google Scholar
• Holtekjølen, A. K., Bævre, A. B., Rødbotten, M., Berg, H., & Knutsen, S. H. (2008). Antioxidant properties and sensory profiles of breads containing barley flour. Food Chemistry, 110(2), 414–421. doi:10.1016/j.foodchem.2008.02.054
   PubMed Web of Science ®Google Scholar
• Ijarotimi, O. S., & Ashipa, F. (2006). Evaluation of nutritional composition, sensory and physical property of home processed weaning food based on low cost locally available food materials. Nutrition & Food Science, 36(1), 6–17. doi:10.1108/00346650610642142
   Google Scholar
• Ioannou, I., Hafsa, I., Hamdi, S., Charbonnel, C., & Ghoul, M. (2012). Review of the effects of food processing and formulation on flavonol and anthocyanin behaviour. Journal of Food Engineering, 111(2), 208–217. doi:10.1016/j.jfoodeng.2012.02.006
   Web of Science ®Google Scholar
• Jing, Y., Chen, J.-F., Zhao, -Y.-Y., & Mao, L.-C. (2010). Effects of drying processes on the antioxidant properties in sweet potatoes. Agricultural Sciences in China, 9(10), 1522–1529. doi:10.1016/S1671-2927(09)60246-7
   Google Scholar
• Kong, J. M., Chia, L. S., Goh, N. K., Chia, T. F., & Brouillard, R. (2003). Analysis and biological activities of anthocyanins. Phytochemistry, 64(5), 923–933. doi:10.1016/S0031-9422(03)00438-2
   PubMed Web of Science ®Google Scholar
• Kreiβl, A. (2009). Malnutrition in the Philippines-perhaps a double burden? Journal für Ernährungsmedizin, 11(1), 24.
   Google Scholar
• Leenhardt, F., Lyan, B., Rock, E., Boussard, A., Potus, J., Chanliaud, E., & Remesy, C. (2006). Wheat lipoxygenase activity induces greater loss of carotenoids than vitamin E during breadmaking. Journal of Agricultural and Food Chemistry, 54(5), 1710–1715. doi:10.1021/jf052243m
   PubMed Web of Science ®Google Scholar
• Lola, A. (2009). The effect of boiling on the nutrients and anti-nutrients in two non conventional vegetables. Pakistan Journal of Nutrition, 8(9), 1430–1433. doi:10.3923/pjn.2009.1430.1433
   Google Scholar
• Martinez-Villaluenga, C., Michalska, A., Frias, J., Piskula, M. K., Vidal-Valverde, C., & Zieliński, H. (2009). Effect of flour extraction rate and baking on thiamine and riboflavin content and antioxidant capacity of traditional rye bread. Journal of Food Science, 74(1), C49–C55. doi:10.1111/j.1750-3841.2008.01008.x
   PubMed Web of Science ®Google Scholar
• Moore, J., Luther, M., Cheng, Z., & Yu, L. (2009). Effects of baking conditions, dough fermentation, and bran particle size on antioxidant properties of whole-wheat pizza crusts. Journal of Agricultural and Food Chemistry, 57(3), 832–839. doi:10.1021/jf802083x
   PubMed Web of Science ®Google Scholar
• Neumann, C. G., Gewa, C., & Bwibo, N. O. (2004). Child nutrition in developing countries. Pediatric Annals, 33(10), 658–674.
   PubMed Web of Science ®Google Scholar
• Okaka, J. C., & Okaka, A. N. C. (2001). Food composition, spoilage and shelf life extension (pp. 225–226). Enugu, Nigeria: OCJANCO Acad. Publishers.
   Google Scholar
• Olajide, R., Akinsoyinu, A. O., Babayemi, O. J., Omojola, A. B., Abu, A. O., & Afolabi, K. D. (2011). Effects of processing on energy values, nutrients and anti-nutrient components of wild cocoyam [Colocasia esculenta (L.) Schott] corm. Pakistan Journal of Nutrition, 10(1), 29–34. doi:10.3923/pjn.2011.29.34
   Google Scholar
• Pokorny, J. (2007). Antioxidants in food preservation. In M. S. Rahman (Ed.), Handbook of food preservation (2nd ed., pp. 264–268). Boca Raton (FL): CRC Press Taylor and Francis Group, LLC.
   Google Scholar
• Salvacion, A. (2017). Exploring determinants of child malnutrition in Marinduque Island, Philippines. Human Ecology, 45(6), 853–863. doi:10.1007/s10745-017-9951-0
   Web of Science ®Google Scholar
• Shimada, K., Fujikawa, K., Yahara, K., & Nakamura, T. (1992). Antioxidative properties of xanthan on the autoxidation of soybean oil in cyclodextrin emulsion. Journal of Agricultural and Food Chemistry, 40(6), 945–948. doi:10.1021/jf00018a005
   Web of Science ®Google Scholar
• Srivastava, A. K., Meyer, D., Rao, P. H., & Seibel, W. (2002). Scanning electron microscopic study of dough and chapati from gluten-reconstituted good and poor quality flour. Journal of Cereal Science, 35(2), 119–128. doi:10.1006/jcrs.2001.0432
   Web of Science ®Google Scholar
• Suda, I., Oki, T., Masuda, M., Kobayashi, M., Nishiba, Y., & Furuta, S. (2003). Physiological functionality of purple-fleshed sweet potatoes containing anthocyanins and their utilization in foods. Japan Agricultural Research Quarterly, 37(3), 167–173.
   Google Scholar
• Teow, C. C., Troung, V. D., Mcfeeters, R. F., Thompson, R. L., Pecota, K. V., & Yencho, G. C. (2007). Antioxidant activities, phenolic and β-carotene contents of sweet potato genotypes with varying flesh colours. Food Chemistry, 103(3), 829–838.
   Web of Science ®Google Scholar
• Vaidehi, M. P. (1988). Protein quality of Nutri-mix based on dehydrated sweet potato flour, soybean, defatted groundnut and milk powder. Nutrition Reports International, 37(4), 723–728.
   Google Scholar
• Wang, L. S., & Stoner, G. D. (2008). Anthocyanins and their role in cancer prevention. Cancer Letters, 269(2), 281–290. doi:10.1016/j.canlet.2008.05.020
   PubMed Web of Science ®Google Scholar
• Waramboi, J. G., Dennien, S., Gidley, M. J., & Sopade, P. A. (2011). Characterisation of sweetpotato from Papua New Guinea and Australia: Physicochemical, pasting and gelatinisation properties. Food Chemistry, 126(4), 1759–1770. doi:10.1016/j.foodchem.2010.12.077
   PubMed Web of Science ®Google Scholar
• Whitney, E. N., Cataldo, C. B., & Rolfes, S. R. (1994). Understanding normal and clinical nutrition (4th ed.). USA: West Publishing Company.
   Google Scholar
• Whitney, E. N., & Rolfes, S. R. (1999). Understanding nutrition (8th ed., pp. 177–179, 216–219). USA: Wadsworth Publishing Company.
   Google Scholar
• Woolfe, J. (1992). Sweet potato-a versatile and nutritious food for all. Product Development for Root and Tuber Crops: Africa, 3, 221.
   Google Scholar
• Yadav, A. R., Guha, M., Tharanathan, R. N., & Ramteke, R. S. (2006). Changes in characteristics of sweet potato flour prepared by different drying techniques. LWT - Food Science and Technology, 39(1), 20–26. doi:10.1016/j.lwt.2004.12.010
   Web of Science ®Google Scholar