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All Journal Teknotan: Jurnal Industri Teknologi Pertanian Enggang: Jurnal Pendidikan, Bahasa, Sastra, Seni, dan Budaya
Lutfi Mahmudah
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Arts Education Languange, Linguistic, Communication & Media Other

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Prediction Model of Basal Stem Rot (BSR) Based on Ganoderma Boninense Using UV/Vis Diffuse Reflectance Spectroscopy Zaqlul Iqbal; Lutfi Mahmudah; Bambang Susilo
Teknotan: Jurnal Industri Teknologi Pertanian Vol 15, No 2 (2021): TEKNOTAN, Desember 2021
Publisher : Fakultas Teknologi Industri Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jt.vol15n2.1

Abstract

Basal Stem Rot (BSR) disease was considered as the most destructive disease in oil palm tree. Ganoderma boninense. fungi causing BSR on oil palm tree, could release cell wall degrading enzymes (CWDE) which responsible to degrade polysaccharide on oil palm tree cell wall such as cellulose and lignin into reducing sugar. In this research optical measurement using UV/Vis Diffuse Reflectance Spectroscopy (DRS) was utilized to qualify and quantify BSR level based on its reducing sugar. Several stages were conducted to qualify and quantify reducing sugar comprising sample preparation, spectral data acquisition and chemometrics analysis. Health Stem (HS) and Infected Stem (IS) were prepared. The two stem condition were dried and powdered separately then mixed into 5 mixtures from both stems (100% HS, 75% HS + 25% IS + 50% HS + 50% IS, 25% HS +75% IS and 100% IS) and duplicated to produce 10 total sample. Reducing sugar was measured for each sample. Other than that, spectrum acquisition data was conducted using UV/Vis DRS. In the final stage, chemometrics analysis was performed where reducing sugar was set as response and spectral data was set as predictor. The result showed that Principal Component Analysis (PCA) could well classify 4 group of mixtures. While for quantitative analysis, Partial Least Square (PLS) and Support Vector Machine Regresion (SVR) were used to develop prediction model of reducing sugar. PLS showed low performance with the highest R2 val and R2 cal accounting for 0.218 and 0.019 and RMSEC and RMSECV were 0.019 and 0.023, respectively. Besides, SVMR using first derivative savitzky-golay (DG1) preprocessing showed high R2 cal and R2 val accounting for 0.823 and 0.701 with RMSEC and RMSECV were 0.012 and 0.028, respectively.
Analisis Penggunaan Media Pembelajaran Braille Book KARTUNE sebagai Upaya Peningkatan Kepekaan Estetis Disabilitas Tunanetra Adinda Kadwi L.P; Salha Hamidah; Ely Fiatus S.; Icha Silfia; Lutfi Mahmudah; Nur Fajrie
ENGGANG: Jurnal Pendidikan, Bahasa, Sastra, Seni, dan Budaya Vol. 5 No. 1 (2024): Desember : ENGGANG: Jurnal Pendidikan, Bahasa, Sastra, Seni, dan Budaya
Publisher : FKIP, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/enggang.v5i1.19687

Abstract

One of the physical limitations that attracts attention is blindness. In Indonesia, someone who experiences visual impairments is known as a blind person. This research focuses on PPSDSN Pendowo Kudus which is a Social Service Home for the Visually Sensory Disabled. Based on observations and interviews conducted by researchers regarding empowerment activities in the form of guidance at PPSDSN (Social Service Center for Visual Sensory Disabilities) Pendowo Kudus, data was obtained that the musical arts skills at PPSDSN Pendowo Kudus in their implementation experienced several obstacles including difficulties in memorizing the material and the unavailability of tutors since the start of the pandemic in 2019. Judging from the description that has been presented, the author attempts to provide a solution to this problem by proposing an idea for writing an article entitled "Analysis of the Use of Cartoon Braille Book Learning Media as an Effort to Increase the Aesthetic Sensitivity of the Blind". Through this research, it is hoped that people with visual impairments will find it easier to learn musical instrument. In this results and discussion section, the research team describes (1) How Efforts to Increase Aesthetic Sensitivity for Disabilities in general are linked to research at PPSDSN Pendowo Kudus, (2) What is the impact of using Braille Book Media, and (3) How is Braille Book Learning Media CARTOON. Braille Book KARTUNE is a learning media in the form of a book that contains musical notations for musical numbers printed in Braille and equipped with a barcode. The existence of the KARTUNE Braille Book Learning Media makes the musical team receiving benefits at PPSDSN Pendowo Kudus find it easier and more practical to learn musical notation for musical numbers.
Co-Authors Adinda Kadwi L.P BAMBANG SUSILO Ely Fiatus S. Icha Silfia Nur Fajrie Salha Hamidah Zaqlul Iqbal