Nanocrystalline cellulose from lactic acid hydrolysis of pepper waste (Piper nigrum L.): Response surface methodology optimization and application in bio-composite

Holilah Holilah*, Lisman Suryanegara, Hasliza Bahruji, Nanang Masruchin, Suprapto Suprapto, Ratna Ediati, Asranudin Asranudin, Aishah A. Jalil, Dini Viandi Ramadhani, Zuratul Ain Abdul Hamid, Didik Prasetyoko*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Nanocrystalline cellulose (NCs) was successfully isolated from pepper biowaste using lactic acid hydrolysis and employed as filler in seaweed biocomposite. Optimization of hydrolysis parameters by employing response surface methodology (RSM) generates 75.50 % NCs with 76.68 % crystallinity at 6.31 M lactic acid, 3.02 h and 85.86 °C. The ANOVA analysis indicates hydrolysis efficiency requires precise temperature control and lactic acid concentration to obtain high crystalline cellulose at high production yield. The NCs displayed rod-shaped morphology with 29.65 ± 3 nm diameter and 335.19 ± 10 nm length, with a negative zeta potential and higher thermal stability than the cellulose. NCs addition as filler in seaweed biofilm improved the tensile strength but reduced the elongation at break. The biofilm exhibits excellent properties in reducing water adsorption, solubility, and water permeability by increasing nanocellulose filler.

Original languageEnglish
Pages (from-to)6344-6357
Number of pages14
JournalJournal of Materials Research and Technology
Volume27
DOIs
Publication statusPublished - 1 Nov 2023

Keywords

  • Bio-composite
  • Lactic acid
  • Nanocrystalline cellulose
  • Optimization

Fingerprint

Dive into the research topics of 'Nanocrystalline cellulose from lactic acid hydrolysis of pepper waste (Piper nigrum L.): Response surface methodology optimization and application in bio-composite'. Together they form a unique fingerprint.

Cite this