Yuliana Erning Indrastuti, Susana Susana, Dodi Iskandar, Tata Yudhi Wardana


The effect of fermentation period on the pH, titratable acidity, calcium oxalate, oxalic acid, moisture, ash contents, swelling power, solubility, and color of the taro flours was investigated present research. For this aim, taro corms were cleaned, peeled, washed, sliced into chips. Taro chips were fermented at 0, 24, 48, and 72 hours, drained, dried in a cabinet dryer at 60 °C for 10 h, and ground. Results showed that pH, ash content, solubility, lightness (L *) decreased, and moisture content, titratable acidity dan swelling power increased markedly due to fermentation. Calcium oxalate and oxalic acid of the flours changed 843,83-412,07 mg/100 g and 370,52-949,17 mg / 100 g flour respectively. The fermentation at 48 h effected a significant reduction in calcium oxalate (51,19%) and oxalic acid contents (64,35%). The present study indicated that the taro’s flours oxalate content and physicochemical characteristics properties of the taro flours were significantly affected by the fermentation period.


Taro flour; calcium oxalate; oxalic acid; fermentation


Adeleke, B.S., Akinyele, B.J., Olaniyi, O.O. and Jeff-Agboola, Y.A. 2017. Effect of fermentation on chemical composition of cassava peels. Asian J. . Plant Sci. Res. 7(1): 31–38.

Agama-Acevedo, E., Garcia-Suarez, F.J., Gutierrez-Meraz, F., Sanchez-Rivera, M.M., San Martin, E., and Bello-Perez, L.A. 2011. Isolation and partial characterization of Mexican taro (Colocasia esculenta L.) starch. Starch 63: 139–146.

Alam, F,, Nawab, A., Lutfi, Z., Haider, S.Z. 2020. Effect of non-starch polysaccharides on the pasting, gel and gelation properties of taro (Colocasia esculenta) starch. Biosynthesis Nutrition Biomedical doi: 10.1002/star.202000063.

AOAC. 2011. Official methods of analysis of the AOAC, 18th ed. Rev 4. Arlington: Association of official analytical chemists.

Aprianita, A. 2010. Assessment of underutilized starchy roots and tubers for their applications in the food industry. Thesis. School of Biomedical and Health Sciences Victoria University. Werribee Campus. Victoria, Australia

Aprianita, A., Purwandari, U., Watson, B., and Vasiljevic, T. 2009. Physico-chemical properties of flours and starches from selected commercial tubers available in Australia, Int. Food Res. J. 16: 507–520.

Dewi, S.K., Dwiloka. B., Setiani, B.E. 2017. Pengurangan Kadar Oksalat pada Umbi Talas dengan Penambahan Arang Aktif pada Metode Pengukusan. Jurnal Aplikasi Teknologi Pangan 6 (2): 1-4.

Díaz, A., Dini, C., Vina, S.Z., and García, M.A. 2018. Technological properties of sour cassava starches: Effect of fermentation and drying processes. Food Sci. Technol. 93: 116–123.

Gong, S., Xie, F., Lan, X., Zhang, W., Gu, X., and Wang, Z. 2019. Effects of Fermentation on Compositions, Color, and Functional Properties of Gelatinized Potato Flours. J. Food Sci. 85 (2):1-8.

Hsu, C.L., Chen, W., Weng, Y.M., Tseng, C.Y. 2003. Chemical composition, physical properties, and antioxidant activities of yam flours as affected by different drying methods. Food Chem. 83: 85–92.

Huang, C., Lai, P., Chen, I., Liu, Y., Wang, C.R. 2010. Effects of mucilage on the thermal and pasting properties of yam, taro, and sweet potato starches. Food Sci. Technol. 43: 849–855.

Indrastuti, Y.E., Estiasih, T., Christanti, R.A., Pulungan, M.H., Zubaedah E. and Harijono. 2018. Microbial and some chemical constituent changes of high cyanide simultant spontaneous submerged and solid state fermentation of “gadungan pohung”. Int. Food Res. J. 25(2): 487-498.

Iwuoha, C.I., Kalu, F.A. 1995. Calcium oxalate and physico-chemical properties of cocoyam (Colocasia esculenta and Xanthosoma sagittifolium) tuber flours as affected by processing. Food Chem. 54(1):61–66.

Konica Minolta. 2007. Precise Color Communication. https://www.konicaminolta.com/instruments/knowledge/color/index.html. 26 Oktober 2018.

Kumar, V., Sharma, H.K., Singh, K. 2017. Effect of precooking on drying kinetics of taro (Colocasia esculenta) slices and quality of its flours. Food Biosci. 20: 178-186.

Freire, A.L., Ramos, C.L. Schwan, R.F. 2015. Microobiological and chemical parameters during cassava based-substrate fermentation using potential starter cultures of lactic acid bacteria and yeast. Food Res. Int. 76: 787–795.

Kumoro, A.C., Putri, R.D.A., Budiyati, C.S., Retnowati, D.S. and Ratnawati. 2013. Kinetics of Calcium Oxalate Reduction in Taro (Colocasia esculenta) Corm Chips during Treatments Using Baking Soda Solution. International Conference and Workshop on Chemical Engineering UNPAR 2013, ICCE UNPAR

Lee, M.Y., Lee, M.K., Park, I. 2007. Inhibitory effect of onion extract on polyphenol oxidase and enzymatic browning of taro (Colocasia antiquorum var. esculenta). Food Chem. 105: 528–532

Noonan, S. and Savage, G.P. 1999. Oxalate content of Food and its effect on humans. Asia Pac. J. Clin. Nutr. 8(1): 64-74.

Ogunnaike, A.M., Adepoju, P.A., Longe, A.O., Elemo, G.N. and Oke, O.V. 2015. Effects of submerged and anaerobic fermentations on cassava flour (Lafun), Afr. J. Biotechnol. 14(11): 961–970.

Oke, M.O. and Bolarinwa, I.F. 2012. Effect of Fermentation on Physicochemical Properties and Oxalate Content of Cocoyam (Colocasia esculenta) Flour. International Scholarly Research Network Agronomy 2012: 1-4.

Onyango, C., Bley, T., Raddatz, H., Henle, T. 2004. Flavour compounds in backslop fermented uji (an East African sour porridge). Eur. Food Res. Technol. 218: 579– 583.

Putri, W.D.R, Haryadi, D.W., Marseno and Cahyanto, M.N. 2011. Effect of biodegradation by Lactic Acid Bacteria on physical properties of cassava starch. Int. Food Res. J. 18(3): 1149–1154.

Savage, G.P., Martensson, L. 2010. Comparison of the estimates of the oxalate content of taro leaves and corms and a selection of Indian vegetables following hot water, hot acid and in vitro extraction methods, J. Food Compos. Anal. 23: 113–117.

Savage, G.P., Vanhanen, L., Mason, S.M., and Ross, A.B. 2000. Effect of Cooking on the Soluble and Insoluble Oxalate Content of Some New Zealand Foods. J. Food Compos. Anal. 13: 201-206.

Setiarto, R.H.B., Kusumaningrum, H.D., Jenie B.S.L., Khusniati, T. Widhyastuti, N. and Ramadhani, I. 2020. Microstructure and physicochemical characteristics of modified taro starch after annealing, autoclaving-cooling and heat moisture treatment. Food Res. 4 (4): 1226 – 1233.

Siener, R., Honow, R. Voss, S. Seidler, A., and Hesse, A. 2006. Oxalate Content of Cereals and Cereal Products. J. Agric. Food Chem. 54: 3008-3011.

Simpson, T.S., Savage, G.P., Sherlock, R., Vanhanen, L.P. 2009. Oxalate content of silver beet leaves (Beta vulgaris var. cicla) at different stages of maturation and the effect of cooking with different milk sources. J. Agric. Food Chem. 57: 10804–10808.

Simsek, S. and Nehir El, S. 2015. In vitro starch digestibility, estimated glycemic index and antioxidant potential of taro (Colocasia esculenta L. Schott) corm. Food Chem. 168: 257–261.

Singh, N., Singh, J., Kaur, L., Sodhi, N.S., Gill, B.S. 2003. Morphological, thermal and rheological properties of starches from different botanical sources. Food Chem. 81: 219–231.

Subekti, A. dan Wahyuni, T.S. 2015. Penampilan Fenotipik Varietas Lokal Talas Hitam Pada Tiga Sentra Produksi di Kalimantan Barat, Prosiding Seminar Hasil Penelitian Tanaman Aneka Kacang dan Umbi.

Tattiyakul, J. Asavasaksakul, S. and Pradipasena, P. 2005. Chemical and Physical Properties of Flour Extracted from Taro Colocasia esculenta (L.) Schott Grown in Different Regions of Thailand. Sci, Asia 32: 279-284

Wadamori, Y., Vanhanen, L. and Savage, G.P. 2014. Effect of Kimchi Fermentation on Oxalate Levels in Silver Beet (Beta vulgaris var. cicla). Foods 3: 269-278.

Wewo M.N., Prasetyawan, S., Srihardyastutie, A. 2018. Antinutritional Content, Protein Profiles, and Flour Characteristics of Taro Tubers (Colocasia esculenta) Fermented with Lactobacillus plantarum. J. Pure Appl. Chemi. Res. 7(3): 301-307.





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