Bioavailabilitas α-Tokoferol Minuman Emulsi Minyak Sawit dalam Plasma Darah dan Hati Tikus (Rattus norvegicus)

Abstract

ABSTRAKMinuman emulsi minyak sawit (MEMS) merupakan salah produk berbasis emulsi oil-in-water yang dapat menjadi sumber vitamin E dalam bentuk α-tokoferol. Komposisi dasarnya adalah olein minyak sawit, air, dan pengemulsi. Secara teoritis, produk ini kaya akan α-tokoferol namun bioavailabilitasnya belum diketahui. Oleh karena itu, tujuan penelitian ini adalah (1) Menganalisis komposisi kimia MEMS melalui uji proksimat dan kadar α-tokoferolnya, dan (2) Mengevaluasi bagaimana bioavailabilitas α-tokoferol secara in vivo. Evaluasi bioavailabilitas dengan memperhitungkan Tocopherol Accumulation Factor (TAF) relatif, sedangkan komposisi kimia didapatkan melalui analisis proksimat dan kromatografi dengan HPLC untuk mengetahui kadar α-tokoferol. Kadar α-tokoferol yang didapatkan sebesar 192,63 μg/g. Pengujian biovailabilitas dilakukan selama 14 hari menggunakan hewan coba berupa tikus Rattus norvegicus. Ransum yang diberikan mengandung 30 mg/kg α-tokoferol. Nilai TAF sebesar 1/45,61, yang berarti bahwa 45,61 μg vitamin E dari MEMS dapat menghasilkan 1 μg tokoferol hati. Bioavailabilitas relatif α-tokoferol pada MEMS terhadap α-tokoferol murni sebesar 82,46%. Hasil tersebut menunjukkan bahwa MEMS memiliki bioavailabilitas yang baik.Kata kunci: α-tokoferol; bioavailabilitas; minyak sawit; minuman emulsi minyak sawit; Tocopherol Accumulation Factor ABSTRACT Palm oil emulsion drink (POED) is a kind of oil-in-water emulsion which consider to be a good source of α-tocopherol. The POED consists of palm olein, water, and emulsifier. Theoritically, it should contains high amount of α-tocopherol but its bioavailability have not been studied yet. The aim of this research were (1) to review the chemical composition of POED by doing proximate test then calculate α-tocopherol level in the product and (2) to evaluate bioavailability of α-tocopherol based on in vivo study. Bioavailability evaluation was carried out by measuring Relative Tocopherol Accumulation Factor (TAF), meanwhile its chemical composition was measured by proximate test and chromatographic analysis using HPLC. α-tocopherol contents of this products were 192,63 μg/g. Bioavailability study was carried out for 14 days using Rattus norvegicus rats. The prepared food contains 30 mg/kg α-tocopherol were given to vitamin-E-depleted rats. Tocopherol Accumulation Factor (TAF) proposed for the test group is 1/45,61, which indicated that 45,61 μg vitamin E from this product was needed to accumulate 1 μg tocopherol in the liver. Tocopherol relative bioavailability of POED was 82,46%. It showed that POED has good bioavailability.

Physicochemical and Rheological Properties of Red Palm Olein Oleogels Made With Beeswax as the Oleogelator

“…Technically, its processing is conducted without bleaching or deodorisation, enabling the retention of carotenoids in crude palm oil (Dewi et al, 2023;Purnama et al, 2020). Carotenoids in RPO increase retinol levels in the blood serum, which justifies their use in cases of vitamin A deficiency (Harlen et al, 2018;Loganathan et al, 2017). Treatment of vitamin A deficiency is important because it causes metabolic disorders, metaplasia (changes in cell function), infectious diseases, immunoglobulin dysregulation, anaemia, promyelocytic leukaemia, xerophthalmia (failure to produce tears), cancer development, and death (Carazo et al, 2021;Surman et al, 2020).…”