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Cilembu sweet potato is a high-yielding Indonesian variety that generates considerable agro-industrial waste from unconsumed biomass. Owing to its high carbohydrate content, this waste hydrolysate was evaluated as a carbon source for the cultivation of Gluconacetobacter xylinus to produce bacterial nanocellulose (BNC).

Production parameters were optimized using a Box–Behnken experimental design to assess the effects of initial pH, bacterial inoculum volume, and D-glucose concentration on BNC yield. Statistical analysis indicated that both pH and inoculum concentration significantly influenced yield, whereas D-glucose concentration had no statistically significant effect (p = 0.059). Optimal conditions were identified at pH 5.7 and 10% inoculum, yielding 3.97 g/L of BNC. The synthesized BNC consisted of interconnected nanofibers of 10–100 nm in diameter, with a crystallinity index of up to 77%. Collectively, these results demonstrate that Cilembu sweet potato waste hydrolysate represents an efficient and sustainable carbon substrate for BNC biosynthesis, eliminating the need for additional glucose supplementation.

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Recent trends in life cycle assessment studies on pulp- and paper-based materials Seokmin Hong, Junhyeok Park, Semin Kang, Kyudeok Oh, Soojin Kwon p. 5-24
퇴행성뇌질환 치료를 위한 셀룰로오스 기반 약물전달시스템의 응용과 설계전략 = Applications and design strategies of cellulose-based drug delivery systems for the treatment of neurodegenerative diseases 우한웅, 서진호, 김지은 p. 25-40
Optimization of bacterial nanocellulose production from sweet potato waste via response surface methodology Lili Melani, Grace Brigitta Gunawan, Reso Aji Saputra Wicaksono, Gilang Mahendra Pratama p. 41-55
Preparation and characterization of methyl cellulose/pullulan/montmorillonite nanocomposite film for packaging applications Jungeon Lee, Jae Hoon Jung, Sabina Yeasmin, Neul-Sae-Rom Kim, Seong Baek Yang, Dong-Jun Kwon, Jung Wan Kim, Jeong Hyun Yeum p. 56-65
Study on the valorization of oak bark biomass. 1, Extraction and characterization of tannins Sa Rang Choi, Jung Myoung Lee p. 66-74
Study on the valorization of oak bark biomass. 2, Organosolv pulping of bark residue after tannin extraction Sa Rang Choi, Jung Myoung Lee p. 75-84
Effect of lignin recovery conditions from hardwood kraft black liquor on lignin characteristics Sa Rang Choi, Eon Jin Park, Jung Myoung Lee p. 85-93
(The) first record of cleistothecial Thermoascus crustaceus isolated from dried hardwood pulp in Korea Sunirmal Sheet, Marma Mamaching, Yang Soo Lee p. 94-102
오픈 헤드박스형 파일럿 초지기의 섬유 배향 분석 = Analysis of fiber orientation of paper using pilot machine with open headbox. 3, Effect of stock concentration and feeding speed. 3, 지료 농도 및 사출 속도에 따른 영향 최경화, 이광섭, 류정용 p. 103-110
AKD 및 PAE 복합화를 통한 나노셀룰로오스 기반 코팅지의 차단성 향상 = Enhancement of barrier properties of nanocellulose-based coated paper via AKD and PAE incorporation 채소영, 이학명, 김혜인, 박승욱, 유성민, 이건희, 윤혜정 p. 111-120
버섯 폐배지를 활용한 복합시트의 강도 및 표면 특성 향상 = Enhancement of mechanical and surface properties of composite sheets prepared using spent mushroom substrate 한승민, 최윤혁, 임완희, 정재훈, 전초현, 오지연, 이상수 p. 121-129

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