The effect of rice milling time and feed rate on head rice yield and color properties

Year 2022, , 585 - 591, 30.12.2022

Ahmet Konuralp Eliçin , Reşat Esgici , Abdullah Sessiz

https://doi.org/10.31015/jaefs.2022.4.11

Cited By: 1

Abstract

This study has been carried out to evaluate the head rice yield, kernel broken and the chance of color depend on milling time and feed rate. In this study, threshed rice kernels by combine-harvester at different cylinder speeds, rice harvesting season in 2018, were used for experiment test. According to results, head rice yield decreased slightly as the cylinder speed increased, with yields varying between 71.40 % and 70.28 %. Processing time was found to have a highly significant effect (p<0.01) on the quantities of unbroken kernel, broken kernel, bran, yield and husk. The highest rate of broken kernel was obtained at a processing time of 25 seconds, and the lowest values were obtained at a processing time of 10 seconds. With a processing time of 10 seconds, the quantities of unbroken kernel, broken kernel, bran, yield and husk were 70.74, 3.260, 0.810, 74.37 and 24.82 %, respectively. When the processing time was 25 seconds, the quantity of broken kernel decreased from 70.74 percent to 62.86 percent, and yield decreased from 74.37 % to 67.58 %. The broken kernel ratio increased from 3.26 percent to 4.633 percent and bran ratio increased from 0.8642 percent to 1.822 percent. Husk ratio, on the other hand, increased from 24.82 % to 30.60 %. In other words, as the processing time increased, so did the bran ratio and husk ratio. The highest whiteness value of 70.92 was obtained at a processing time of 25 seconds; while the lowest whiteness value of 63.81 was obtained at a processing time of 10 seconds. There were declines in a and b values as processing time increased, although the differences were not statistically significant. The highest a and b values were obtained at a processing time of 10 seconds, with -0.690 and 15.01, respectively. In conclusion, when processing paddy to rice, processing time needs to be increased to obtain a whiter rice; to have fewer broken kernels and a higher head rice yield, on the other hand, the processing time needs to be short.

Keywords

Rice processing, head rice yield, rice breaking, milling, husking

References

• Asabe Standarts. (2008). S358.2: 1:1 Measurement forages. 52nd edn. American Society of Agricultural Engineers, St Joseph MI. https://asabe.org/Search-Results/s/all?page=1
• Bond, N. (2004). Rice milling. In: Champagne, E.T. (Ed.), Rice: Chemistry and Technology, third ed. American Association of Cereal Chemists, St. Paul, MN, USA, pp. 283–300. https://www.cerealsgrains.org/publications/onlinebooks/grainscience/Rice/Pages/default.aspx
• Buggenhout, J., Brijs, K., Celus, I., Delcour, J.A. (2013). The breakage susceptibility of raw and parboiled rice: A review. Journal of Food Engineering, 117, 304–315. http://dx.doi.org/10.1016/j.jfoodeng.2013.03.00
• Champagne, E.T., Wood, D.F., Juliano, B.O., Bechtel, D.B. (2004). The rice grains and its gross composition. In: Champagne, E.T. (Ed.), Rice: Chemistry and Technology, third ed. American Association of Cereal Chemists, St. Paul, MN, USA, pp. 77–107. https://www.ars.usda.gov/research/publications/publication/?seqNo115=150448
• Correˆa, P.C., Schwanz da Silva F., Jaren, C., Afonso Junnior P.C., Arana, I. (2007). Physical and mechanical properties in rice processing. Journal of Food Engineering 79 (2007) 137–142 https://www.academia.edu/10542252/Physical_and_mechanical_properties_in_rice_processing
• Delcour, J.A., Hoseney, R.C. 2010. Structure of cereals. Principles of Cereal Science and Technology, third ed. AACC International, St. Paul, MN, USA, pp. 1–22. ISBN: 1891127632 9781891127632
• Esgici, R., Pekitkan, F.G., Sessiz, A. (2019). Correlation between rice stem cutting resistance and cracking force of rice kernel. Fresenius Environmental Bulletin. Vol. 28 – No. 4A/2019, p. 3014-3021. ISSN: 1018-4619. WOS:000467668200002
• FAO. (2018). www.fao.org /economic/est/publications/rice-publications/rice-market-monitor.../en/
• Evcim, Ü., Ülger, P. (2006). Determination of the Relationship Between Harvest Moisture and Maximum Yield in order to Get Maximum Efficiency as a result of Fast Drying of Rice. Journal of Tekirdag Faculty of Agriculture, 3(3). https://agris.fao.org/agris-search/search.do?recordID=TR2007000007
• Hunter, R.S., and Harold, R.W. (1987). The Measurement of Appearance, 2nd ed., John Wiley and Sons, Inc. New York, NY USA, 1987. CIE International Commission on Illumination, Recommendations on Uniform Color Spaces, Color-Difference Equations, Psychometric Color Terms, Supplement No. 2 to CIE Publication No. 15. ISBN: 978-0-471-83006-1
• IRRI. (2018). IRRI Rice Knowledge bank. http://www.knowledgebank.irri.org/.
• Razavi, S.M.A., Farahmandfar, R. (2008) Effect of Hulling and Milling on the Physical Properties of Rice Grains. International Agrophysics. 22: 353-359. http://www.international-agrophysics.org/pdf-106516-37358?filename =Effect%20of%20hulling%20and.pdf
• Markovic, I., Ilic, J., Markovic, D., Simonovic, V., Kosanic, N. (2013). Color measurement of food products using CIE L* a* b* and RGB color space. Journal of Hygienic Engineering and Design, VOL: 4, p. 50–53. http://www.jhed.mk/filemanager/JHED%2...
• Kim, S.Y, Lee, H. (2012). Effects of Quality Characteristics on Milled Rice Produced under Different Milling Conditions. J Korean Soc Appl Biol Chem., Vol: 55, 643−649, 10.1007/s13765-012-2082-9
• Kumar, D., Kalita, P. (2017). Reducing Postharvest Losses during Storage of Grain Crops to Strengthen Food Security in Developing Countries. Foods 2017, 6, 8; doi:10.3390/foods6010008
• Mejía, D.J. (2003). An overview of rice post-harvest technology: use of small metallic silos for minimizing losses. Proceedings of the 20th session of the International Rice Commission. Bangkok, Thailand www.fao.org/3/Y4751E/ y47510o.htm
• Mir, S.A., Bosco, S.J.D., Sunooj, K.V. (2013). Evaluation of physical properties of 6 rice cultivars grown in the temperate region of India. International Food Research Journal, 20(4): 1521-1527. http://ifrj.upm.edu.my/20%20(04)%202013/2%20IFRJ%2020%20(04)%202013%20Bosco%20(438).pdf
• Mithy, D., Suneel, G., Vishal, K., Rintu, B., and Satish, B. (2008) Enzymatic polishing of rice- A new processing technology. LWT-Food Sci and Technol 41, 2079–84. https://www.academia.edu/22406911/Enzymatic_ polishing_of_rice_A_new_processing_technology
• Pınar, Y., Beyhan, M.A. 1992. Milling Quality and rice losses at paddy factories. 14th National Agricultural Mechanization Congres Proseeding Book. Samsun, Turkey.
• Roy, P., Orikasa, T., Okadome, H., Nakamura, N., Shiina, T. (2011) Processing conditions, rice properties, health and environment. Int J Environ Res Public Health 8: 1957-1976. doi: 10.3390/ijerph8061957
• Schluterman, D.A., Siebenmorgen T.J. (2007) Relating rough rice moisture content reduction and tempering duration to head rice yield reduction. Trans ASAE 50, 137–142. https://agris.fao.org/agris-search/search.do?recordID =US201300857982
• Singha, K. (2012) Structure and Performance of Paddy Processing Industry in India: A Case of Karnataka. Scientific & Academic Publishing, USA. ISBN: 978-1-938681-02-8
• Siebenmorgen, T.J., Counce, P.A., Lu, R., Kocher, M.F. (1992). Correlation of head rice yield with individual kernel moisture content distribution at harvest. Transactions of the Asae 35 (6), 1879–1884.
• Singha, K. (2013). Paddy Processing Mills in India. An Analysis. 2013.Journal of Rice Research: Open Access. 1:2 http://dx.doi.org/10.4172/jrr.1000115. https://agris.fao.org/agris-search/search.do?recordID=US19940011468
• Zhang, Q., Yang, W., Sun, Z. (2005) Mechanical properties of sound and fissured rice kernels and their implications for rice breakage. J Food Eng. Vol:68, p.65–72. https://agris.fao.org/agris-search/search.do?recordID =US201300972374
• Zhou, L., Shanshan L., Kimberley P., Severino M., Guoyou, Ye., Xiangqian, Z. (2015). Factors affecting head rice yield and chalkiness in indica rice. Field Crops Research 172 (2015) 1–10 https://coek.info/pdf-factors-affecting-head-rice-yield-and-chalkiness-in-indica-rice-.html
• Zielinska, M., Zapotoczny, P., Białobrzewski, I., Zuk-Golaszewska, K., Markowski, M. (2012). Engineering properties of red clover (Trifolium pratense L.) seeds. Industrial Crops and Products, 37: 69– 75. https://www.sciencedirect.com/science/article/pii/S0926669011004651