Determination of water adulterated in coconut milk by using near infrared spectroscopy
Keywords:
Coconut milk, Adulteration, Near infrared spectroscopyAbstract
Coconut milk is important ingredient for cooking many Thai food. An issue for domestic and international customers is adulterated coconut milk with cheap and analogous materials. Water has been often used to adulterate in coconut milk which is difficult for detecting with visualization. This research aims to study on determination of adulteration of water in coconut milk by using near infrared spectroscopy. The fresh coconut milk sample was obtained from crushing of coconut which was bought from market. Coconut milk was mixed with distilled water at level of 10-90 %w/w. Near infrared spectra were recorded in range of 12500 – 4000 cm-1. The raw spectra were used to establish the model with partial least squares regression (PLSR) technique. The model showed performance of determination of adulterated coconut milk on training and testing set with = 0.96 และ
= 0.85 respectively. This result presented the guideline for application of near infrared spectroscopy to detect adulteration of water in coconut milk.
References
กรมเจรจาการค้าระหว่างประเทศ. (2565). สินค้ามะพร้าวและกะทิ. https://api.dtn.go.th/files/v3/60f7d503ef41404c21342ef0/download.
วิชัย ริ้วตระกูล และคณะ. (2527). การประยุกต์สเปคโตรสโคปีในเคมีอินทรีย์. (พิมพ์ครั้งที่ 2). กรุงเทพฯ: นำอักษรการพิมพ์.
Alyaqoubi, S., Abdullah, A., Samudi, M., Abdullah, N., Addai, Z. R., & Musa, K. H. (2015) . Study of antioxidant activity and physicochemical properties of coconut milk (Pati santan) in Malaysia. Journal of Chemical and Pharmaceutical Research. 7(4), 967-973.
Bazar, G., Romvari, R., Szabo, A., Somogyi, T., Eles, V., & Tsenkova, R. (2016). NIR detection of honey adulteration reveals differences in water spectral pattern. Food Chemistry. 194, 873-880.
Guelpa, A., Marini, F., Plessis, A. D., Slabbert, R., & Manley, M. (2017). Verification of authenticity and fraud detection in South African honey using NIR spectroscopy. Food Control. 73, 1388-1396.
Li S., Zhang, X., Shan, Y., Donglin, S., Ma, Q., Wen, R., & Li J. (2017). Qualitative and quantitative detection of honey adulterated with high-fructose corn syrup and maltose syrup by using near-infrared spectroscopy. Journal of Sensor Letters. 218, 231-236.
Ma, H. L., Wang, J. W., Chen, Y. J., Cheng, J. L., & Lai, Z. T. (2017). Rapid authentication of starch adulterations in ultrafine granular powder of Shanyao by near-infrared spectroscopy coupled with chemometric methods. Food Chemistry. 215, 108-115.
Osborne, B. G., & Fearn, T. 1986. Near infrared spectroscopy in food analysis (1st published, pp. 117). United Kingdom: Longman Science & Technical.
Thitibunjan, N., & Sirisomboon, P. (2014). Detection of Adulteration of Soy Sauce by Brine Using Near Infrared Spectroscopy. Agriculture and Agricultural Science Procedia. 2, 212-217.
Xu, L., Shi, P. T., Ye, Z. H., Yan, S. M., & Yu, X. P. (2013). Rapid analysis of adulterations in Chinese lotus root powder (LRP) by near-infrared (NIR) spectroscopy coupled with chemometric class modeling techniques. Food Chemistry. 141(3), 2434-2439.
Xu, L., Shi, W., Cai, C. B., Zhong, W., & Tu, K. (2 0 1 5 ) . Rapid and nondestructive detection of multiple adulterants in kudzu starch by near infrared (NIR) spectroscopy and chemometrics. LWT - Food Science and Technology. 61, 590-595.
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