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강혜지Hye Jee Kang

경북대학교

Bioresour. Technol., Feb 19 2024, 397 S0960-8524(24)00174-3 | https://doi.org/10.1016/j.biortech.2024.130471 Fed-batch treatment attenuates diffusional limitation while preparing high solid microfibrillated cellulose from Gelidium amansii

Nur Istianah ^a,b,1, Hye Jee Kang ^a,1, Sudarminto Setyo Yuwono ^b, Sri Suhartini ^c,d, Young Hoon Jung^a

^aSchool of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea

^bDepartment of Food Science and Biotechnology, Universitas Brawijaya, Malang 65145, Indonesia

^cDepartment of Agro-industrial Technology, Universitas Brawijaya, Malang 65145, Indonesia

^dCentre of Excellence in Bioenergy and Biorefinery, Faculty of Agricultural Technology, Universitas Brawijaya, Malang 65145, Indonesia

¹Both authors have equally contributed.

Corresponding author: Young Hoon Jung

Abstract

This study investigates the effects of fed-batch treatment on the fibrillation degree and properties of Gelidium amansii-derived microfibrillated cellulose (MFC). Fed-batch milling was conducted with the initial solid loading of 1 % w/v followed by three stages of feeding to obtain a final solid concentration of 5 % w/v. This process provides a high-solid MFC of around 10 %, while batch milling only provides the maximum solid loading of 4 %. It also reduces approximately 83 % power consumption of batch milling at the same solid loading (4 %). The obtained MFC 5 % has lower fibrils length (14.9 µm) and width (16.46 nm), but higher consistency index (>250 Pa.s) than MFC 1 % (22 µm, 21 nm, 5.88 Pa.s). The crystallinity and maximum decomposition temperatures of both MFCs are comparable, varying at 49-53 % and 318 °C-320 °C. In summary, fed-batch treatment is promising for the techno-economic development of MFC production by lowering energy and maintaining product quality.

논문정보

형식Research article
게재일2024년 02월 (BRIC 등록일 2024-03-08)
연구진국내(교신)+국외 연구진
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