Studying the Anthocyanin Stability of in Purple Sweet Potato Extracts


  • Saluma Samanman
  • Sofia Duerasingmamong
  • Irfan Masaesai


The objective of this research was to study the effects of pH and heat on the stability of the purple sweet potato extracts using water extraction. When the extract was 3.00, respectively. In addition, it was found that the percentage of polymer color and the total color density measurement at pH 1.00 were higher than pH 3.00, and the browning index values ​​ at pH 1.00 were lower than pH 3.00, indicating that the anthocyanins of purple sweet potato extract at pH 1.00 were more stable.


วรางคณา เขาดี. (2558). การเพิ่มประสิทธิภาพตรวจวัดไอออนโลหะหนักโดยใช้วัสดุดัดแปรด้วยรีเอเจนต์จากธรรมชาติ (รายงานผลการวิจัย). เชียงใหม่: มหาวิทยาลัยราชภัฏเชียงใหม่.

สุภาพร พาเจริญ. (2562). เสถียรภาพของสารสกัดแอนโทไซยานินจากรำข้าวไรซ์เบอร์รี่ที่ผ่านการห่อหุ้มด้วยโปรตีนรำข้าวเข้มข้นภายใต้สภาวะค่าความเป็นกรด-ด่างและความร้อนที่แตกต่างกัน. วารสารวิชาการ มทร. สุวรรณภูมิ (มนุษยศาสตร์และสังคมศาสตร์), 7(2), 205-215.

Brouillard, R. (1982). Chemical structure of anthocyanins. Chap. 1. In “Anthocyanins as food colours.” P.Markakis (Ed.). Academic Press (1). New York.

Cabrita, L., Fossen, T., & Oyvind M. Andersen. (2000). Colour and stability of the six commom anthocyanidin 3-glucoside in aqueous solutions. Food Chem, 68, 101-107.

Enaru, B., Dretcanu, G., Pop, T.D., Stanila, A., & Diaconeasa, Z. (1967). Anthocyanins: factors affecting their stability and degradation. Antioxidants, 10, 1967.

Fossen, T., Cabrita, L., & Anderson, M. (1998). Colour and stability of pure anthocyanins influenced by pH including the alkaline region. Food Chem, 63, 435-440.

Khaodee, W., Wongkiti, R., & Madang, S. (2018). The application of using natural reagent extracted from purple sweet potato for naked-eye detection of copper in water samples. Naresuan University Journal: Science and Technology, 26(3), 181–188.

Liu, P., Li, W., Hu, Z., Qin, X., & Liu, G. (2020). Isolation, purification, identification, and stability of anthocyanins from Lycium ruthenicum Murr. LWT-Food Science and Technology, 126, 109334.

Oki, T., Osame, M., Masuda, M., Furuta, S., Nishiba, Y., Terahara, N., & Suda, I. (2003). Simple and rapid spectrophotometric method for selecting purple-fleshed sweet potato cultivars with a high radical-scavenging activity. Food and Chemical Toxicology, 53, 101–107.

Saint-Gaulejac, N.C., Glories, Y., & Vivas, N. (1999). Free radical scavenging effect of anthocyanins in red wines. Food Research International, 32, 327-333.

Samanman, S., Daengrot, C., Hilae, A., Ma, S., Sayoh, I., Masaesai, I., Sanitt, P., Binhayeeding, N., Noitubtim, M., Yakob, H., & Duerasingmamong, S. (2023). A smart naked-eye detection for Fe(III) using ethanol extract of purple sweet potato. Naresuan University Journal: Science and Technology, 31(2), 1-12.

Šamec, D., Karalija, E., Šola, I., Vujˇci´c Bok, V., & Salopek-Sondi, B. (2021). The Role of Polyphenols in Abiotic Stress Response: The influence of molecular structure. Plants, 10, 118.

Steed, L. E., & Troung, V. D. (2008). Anthocyanin content, Antioxidant activity and selected physical properties of flowerable purple-fleshed sweet potato. Journal of Food Science, 5, 215-221.

Yoshinaga, M., Yamakawa, O., & Nakatani, M. (2010). Genotypic diversity of anthocyanin content and composition in purple-fleshed sweet potato (Ipomoea batatas (L.) Lam). Breeding Science, 49, 43–47.

Williams, C.A., & Grayer, R.J. (2004). Anthocyanins and other flavonoids. Natural Product Report, 21, 539–573.

Wulandari, A., Sunarti, T. C., Fahma, F., & Noor, E. (2018). Potency of purple sweet potato’s anthocyanin as biosensor for detection of chemicals in food products. IOP Conference Series: Earth and Environmental Science, 147, 012007.

Khoo, H.E., Azlan, A., Tang, S.T., & Lim, S.M. (2017). Anthocyanidins and anthocyanins: colored pigments as food, pharmaceutical ingredients, and the potential health benefits. Food and Nutrition Research, 61, 1361779.




How to Cite

Samanman, S., Duerasingmamong, S., & Masaesai, I. (2024). Studying the Anthocyanin Stability of in Purple Sweet Potato Extracts. Pridiyathorn Science Journal, 2(2), 11–19. Retrieved from



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