Journal of Natural Sciences
Vol 6, No 3 (2025): Journal of Natural Sciences November

Kinetika Hidrolisis Selulosa Menjadi Glukosa Pada Limbah Kulit Nanas (Ananas comosus) Menggunakan Enzim Selulase

Annidya, Putri Azmi (Unknown)
Rachmanto, Tuhu Agung (Unknown)
Novembrianto, Rizka (Unknown)



Article Info

Publish Date
19 Nov 2025

Abstract

Pineapple peel waste (Ananas comosus) is a source of organic waste with high lignocellulose content that has the potential to be utilized through a bioconversion process into glucose. This study aims to determine the Michaelis–Menten kinetic equation of cellulose hydrolysis into glucose using cellulase enzymes and analyze the effect of substrate concentration (1–5% w/v) and hydrolysis time (60–180 minutes) on the reaction rate. The research stages include delignification using 5% NaOH at 80ºC and enzymatic hydrolysis with 10% cellulase at pH 5 and 50ºC. Glucose levels were measured using a Brix refractometer through a standard glucose solution calibration method. The results showed an increase in glucose concentration over time and substrate concentration, with the highest conversion of 91.5% at 5% substrate. Kinetic analysis using the Michaelis–Menten equation yielded an average reaction rate constant (k) of 0.3328 min⁻¹, with the highest k of 0.3828 min⁻¹ and the highest Michaelis–Menten constant ( ) of 2.357 mg·L⁻¹ at a substrate concentration of 5%. A significant increase in  from 0.2403 (1%) to 2.357 (5%) indicates a decrease in enzyme affinity due to substrate saturation. Therefore, a concentration of 5% is considered the optimal condition for the cellulose hydrolysis process, confirming the potential of pineapple peel waste as an efficient substrate source.

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Journal Info

Abbrev

jonas

Publisher

Subject

Agriculture, Biological Sciences & Forestry Environmental Science

Description

The Journal of Natural Sciences is a scientific publication media in the study and development of Science in the fields of science and Education (Biology, Chemistry, and Physics). The Journal of Natural Sciences includes scientific writings in the form of conceptual, research results as well as ...