Rice bran was extracted using ultrasonic method with varied solvents (ethanol, ethyl acetate and n-hexane) and extraction times (20, 25 and 30 minutes). The aim of this study was to determine toxicity value of rice bran extract with variation of solvents and extraction times. Rice bran extracts were tested its toxicity by BSLT method and its secondary metabolite by phytochemical test with reagents. Mortality data of shrimp larvae was analyzed by probit to determine LC50 values. Yield of ethanolic extract of rice bran for E1-20, E1-25 and E1-30 samples was 18.159, 19.132 and 18.280%, respectively. Rice bran extracts by ethyl acetate solvent (E2) and n-hexane (E3) gave different yields such as 8.302% (E2-20), 7.282% (E2-25), 9.18% (E2-30), 7.815% (E3-20), 7.125% (E3-25), and 7.279% (E3-30). All of rice bran extracts contained flavonoids, steroids and triterpenoids. LC50 values in ethanolic extract of rice bran for E1-20, E1-25 dan E1-30 samples were 613.258, 673.210 and 2217.255 ppm, respectively. Toxicity (LC50) values of ethyl acetate extract of rice bran were 1161.298 ppm (E2-20), 1170.774 ppm (E2-25) and 701.532 ppm (E2-30), while toxicity (LC50) values of n-hexane extract of rice bran were 592.901 ppm (E3-20), 617.425 ppm (E3-25) and 695.198 ppm (E3-30). Keywords: Rice bran, secondary metabolite, toxicity, ultrasonic method Bekatul diekstrak menggunakan metode ultrasonik dengan variasi pelarut (etanol, etil asetat dan n-heksana) dan lama ekstraksi (20, 25 dan 30 menit). Tujuan penelitian ini adalah mengetahui nilai toksisitas ekstrak bekatul dengan variasi pelarut dan lama ekstraksi. Ekstrak bekatul diuji kemampuan toksisitas terhadap larva udang dengan metode BSLT dan diuji fitokimia dengan reagen. Data kematian larva udang dianalisis dengan analisis probit untuk menentukan nilai LC50. Rendemen ekstrak etanol bekatul yang diperoleh pada sampel E1-20, E1-25 dan E1-30 masing-masing sebesar 18,159; 19,132; dan 18,280%. Adapun rendemen ekstrak etil asetat dan n-heksana bekatul sebesar 8,302% (E2-20), 7,282% (E2-25), 9,18% (E2-30), 7,815% (E3-20), 7,125% (E3-25) dan 7,279% (E3-30). Senyawa metabolit sekunder yang terkandung pada masing-masing ekstrak adalah flavonoid, steroid dan triterpenoid. Nilai LC50 ekstrak etanol pada masing-masing sampel E1-20, E1-25 dan E1-30 adalah 613,258; 673,210 dan 2217,255 ppm. Ekstrak etil asetat bekatul pada sampel E2-20, E2-25 dan E2-30 memberikan nilai toksisitas dengan LC50 sebesar 1161,398; 1170,774 dan 701,532 ppm, berturut-turut. Nilai toksisitas (LC50) ekstrak n-heksana pada sampel E3-20, E3-25 dan E3-30 adalah 592,901; 617,425 dan 695,198 ppm, berturut-turut. Kata kunci: Bekatul, metabolit sekunder, toksisitas, metode ultrasonik
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.