Pelepah kelapa sawit (Elaeis guineensis Jacq.) (OPF), hasil sampingan dalam industri minyak kelapa sawit merupakan salah satu sumber bahan mentah di Malaysia. Pengekstrakan hemiselulosa daripada OPF telah dijalankan melalui dua pengolahan hidrotermal; letupan stim dan pemanasan dengan autoklaf. Campuran kepingan OPF-air atau OPF-KOH (1:10, w/v) diletup stim pada takat musnah 2.96–3.84 (180–210 °C selama 4 min) sebelum diekstrak dengan air pada 70 °C selama 2 jam. Dalam pengolahan menggunakan autoklaf, campuran kepingan OPF-air (1:10, w/v) diautohidrolisis pada takat musnah 1.92-2.52 (121 °C selama 20-80 min).
Oil palm (Elaeis guineensis Jacq.) fronds (OPF) are produced worldwide as a by-product of the palm oil industries and represent another abundant raw material in Malaysia. Extraction of hemicellulose from OPF was conducted with two hydrothermal treatments; steam explosion and heating with autoclave. The mixture of OPF chips-water or OPF-KOH (1:10, w/v) were steam exploded at severity of 2.96-3.84 (180-210 ⁰C for 4 min) before extracted with water at 70 ⁰C for 2 h. In the treatment using autoclave, the mixture of OPF-water (1:10, w/v) was autohydrolysed in an autoclave at severity of 1.92-2.52 (121 ⁰C for 20-80 min)
