Co-production of hydrochar and bioactive compounds from Ulva lactuca via a hydrothermal process  

作　　者：Edy Hartulistiyoso Obie Farobie Latifa A Anis Novi Syaftika Asep Bayu Apip Amrullah Navid R.Moheimani Surachai Karnjanakom Yukihiko Matsumura 

机构地区：[1]Department of Mechanical and Biosystem Engineering,IPB University,Bogor,West Java 16002,Indonesia [2]Surfactant and Bioenergy Research Center(SBRC),IPB University,Bogor,West Java 16144,Indonesia [3]Research Centre for Industrial Process and Manufacturing Technology,National Research and Innovation Agency(BRIN),Tangerang,Selatan,Indonesia [4]Research Center for Vaccine and Drugs,National Research and Innovation Agency(BRIN),Bogor,West Java 16911,Indonesia [5]Department of Mechanical Engineering,Lambung Mangkurat University,Banjarmasin,South Kalimantan,Indonesia [6]Algae R&D Centre,Harry Butler Institute,Murdoch University,Murdoch,WA 6150,Australia [7]Department of Chemistry,Rangsit University,Pathumthani 12000,Thailand [8]Graduate School of Advanced Science and Engineering,Hiroshima University,1-4-1 Kagamiyama,Higashi-Hiroshima 739-8527,Japan

出　　处：《Carbon Resources Conversion》2024年第1期1-9,共9页碳资源转化（英文）

基　　金：financially by the Indonesian Endowment Fund for Education(LPDP)through“RISPRO KI”the International Research Collaboration(Grant No.RISPRO/KI/B1/KOM/12/11684/1/2020).

摘　　要：This study investigates the simultaneous production of hydrochar and bioactive compounds from Ulva lactuca via a hydrothermal process.The experiment was carried out using a batch reaction vessel at different reaction temperatures of 180-220◦C and various holding times of 30-90 min.As expected,both temperature and time vigorously influenced hydrochar and bioactive compound production.The maximum hydrochar yield was at 32.4 wt%.The higher heating value(HHV)of hydrochar was observed in the range of 17.68-21.07 MJ kg^(-1),near the energy content of low-rank coals.The hydrochars exhibited contact angles higher than 90°(i.e.,94-108°)for a longer time,confirming their hydrophobic surfaces.The scanning electron microscope analysis(SEM)showed that the hydrothermal process enables cracks in the spherical shape of raw U.lactuca into small and porous particles.Besides producing hydrochar,the hydrothermal process of U.lactuca also gives promising antioxidants and phenolics as bioactive compounds.The highest total phenolic content and antioxidant activity could be achieved in hydrolysate at 200℃and 30 min with the value of 1.20±0.12 mg/g and 71.6±1.3%,respectively.

关 键 词：ALGAE Bioactive compound Hydrochar HYDROTHERMAL SEAWEED 

分 类 号：O62[理学—有机化学]