Article Per Year (5 Year)
p-Index From 2021 - 2026
0
P-Index
This Author published in this journals
All Journal UNM Journal of Biological Education JKPK (Jurnal Kimia dan Pendidikan Kimia)
Muhammad Wiharto
Jurusan Biologi, FMIPA, Universitas Negeri Makassar
Chemical Engineering, Chemistry & Bioengineering Chemistry Education Social Sciences

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Characterization of Cacao Fruit Skin for Active Carbon and Green Chemicals Mohammad Wijaya.M; Muhammad Wiharto
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 2, No 1 (2017): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (508.269 KB) | DOI: 10.20961/jkpk.v2i1.8520

Abstract

The potential of cacao fruit skin that has not been widely used by the community are encouraged to develop the cacao fruit skinas bio charcoal. One way to reduce the build up of biomass waste is by pyrolysis derived from combustion products that produce liquid smoke, charcoal and some gases (CO2, H2, and CO2). The purpose of this research is to utilize cacao peel to get the liquid smoke of cacao skin and cacao charcoal. The result of this research showed that the skin of cacao fruit produce hemicellulose content of 21.06%, cellulose of 20.15% and lignin of 51.98%. The analysis result of carbon content of cacao skin activated charcoal from Luwu regency is 55.11%. FT-IR analysis of the cacao skin powder from Luwu regency showed that there were depolymerization for cellulose and hemicellulose contentsat the wave number of 1107.14 cm-1 andfound C-H of lignin at the wave number of 1730.15 cm-1. The hydroxyl group (OH) appeared on the wave number of 3441.01 cm-1 and group of C = CH (Aromatic H) on the wave number of781.17 – 659.66 cm-1. Crystallinity degree of cacao fruits skin from Luwu which was obtained from XRD analysis is 12.66%. The wasteutilization of this cacao fruit skin with pyrolysis technology is able to reduce carbon emissions and can be as a supporter of sustainable development program.
Perbandingan Kecerdasan Interpersonal dan Hasil Belajar Biologi Siswa Antara yang Dibelajarkan dengan Model Pembelajaran Kooperatif Tipe Two Stay Two Stray dan Jigsaw III Asniati Samad; Muhammad Danial; Muhammad Wiharto
UNM Journal of Biological Education Vol 1, No 2 (2018): Maret 2018
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (528.215 KB) | DOI: 10.35580/ujbe.v1i2.6363

Abstract

This research is quasi experiment, pretest-posttest nonequivalent control group design. The aims is to know about the difference of interpersonal intelligence and students’ biology learning achievement who taught by cooperative learning model tipe two stay two stray and jigsaw III for excretion subject matter XI science SMAN 4 Parepare. Research data about interpersonal intelligence got from questionnaire of interpersonal intelligence and data about Students’ Biology Learning Achievement got from value of learning achievement test. The result of research show that mean of students’ interpersonal intelligence who taught by cooperative learning model type Two Stay Two Stray is 83,54. The result of research show that mean of students’ interpersonal intelligence who taught by cooperative learning model type Jigsaw III is 83,79. The mean of students’ Biologi learning achievement who taught by cooperative learning model type Two Stay Two Stray is 83,54 is 78,67. The mean of students’ Biologi learning achievement who taught by cooperative learning model type Jigsaw III is 84,75. The result of test of between subjects effects from MANCOVA, so we got sig. value of learning achievement 0,000 and 0,736 for interpersonal intelligence. So, the conclusion is there are significant difference of students’ biology learning achievement who taught by cooperative learning model tipe two stay two stray and jigsaw III for excretion subject matter XI science SMAN 4 Parepare and not different in interpersonal intelligence.
Co-Authors Asniati Samad Mohammad Wijaya.M Muhammad Danial