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All Journal Teknotan: Jurnal Industri Teknologi Pertanian Agrointek Jurnal Online Mahasiswa (JOM) Bidang Pertanian Eksergi: Chemical Engineering Journal Sains Natural: Journal of Biology and Chemistry
Siswanti Siswanti
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Other

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PENGARUH RASIO PELARUT DAN WAKTU PENGENDAPAN PADA ISOLASI INULIN UBI JALAR (Ipomoea batatas) Bara Yudhistira; Siswanti Siswanti; Dea Anindita W
AGROINTEK Vol 14, No 2 (2020)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v14i2.6232

Abstract

Inulin is one of many functional food components that becomes a trend nowadays. Inulin can be found in the stems and roots/tubers of plants. Yellow sweet potato (Ipomea batatas L.) is a widespread species of sweet potato with abundant availabilty in Indonesia, where it is exploited only as a source of carbohydrate. From the previous study, it was stated that sweet potato can be used as an alternative resource of inulin besides dahlia and Dioscorea spp. tubers. This study aimed at extracting and isolating inulin from aqueous extract of yellow sweet potato with 3 different ratio (1:1, 1:2, 1:3) and 3 different time (6, 12, 18 hours) to determine its effect on the yield of inulin. After preparation of extracts, crude inulin was precipitated in 96% ethanol. The free reducing sugar from sweet potato flour was tested using Dinitrosalisylic Acid Method (DNS). After precipitation, inulin powder was obtained by an overnight drying process using oven at 60ºC and characterized by color, solubility, water absorption, moisture content and ash content. Its inulin structure was analyzed and confirmed by Fourier Transformed Infrared (FT-IR) spectroscopy. The results showed that different ethanol ratio and precipitating time has effect on the yield of inulin. The highest yield of inulin were 8.80% obtained from solvent ratio 1:3 with 18 hours of precipitating time. It can be concluded that yield of inulin were affected by solvent ratio, precipitating time and degree of polymerization (DP). Higher solvent ratio and precipitating time could obtain higher yield of inulin.
Pengaruh Virgin Coconut Oil (VCO) terhadap Karakteistik Fisik, Kimia dan Mikrobiologi Strawberry (Fragaria x ananassa) Selama Penyimpanan Lintang Sawitri Nugraheni; Rohula Utami; Siswanti Siswanti
Teknotan: Jurnal Industri Teknologi Pertanian Vol 14, No 1 (2020): TEKNOTAN, Agustus 2020
Publisher : Fakultas Teknologi Industri Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jt.vol14n1.2

Abstract

Strawberry merupakan salah satu buah hortikulura yang mudah rusak (perisable), sehingga memiliki umur simpan yang pendek. Kerusakan strawberry disebabkan karena pembusukan akibat pengaruh mekanis maupun mikrobioogi. Penurunan kualitas buah dapat ditandai dengan penurunan susut bobot, kelayuan, penurunan firmness, dan penurunan nilai gizi. Pengawetan strawberry segar sangat diperlukan untuk mempertahankan karakteristik pada strawberry. Salah satu cara mengurangi kerusakan dengan metode pelapisan (coating). Pada penelitian ini dilakukan usaha untuk memperpanjang umur simpan strawberry dengan menggunakan VCO. Penelitian ini dilakukan untuk mengetahui karakteristik fisik, kimia, mikrobiologi dan metode pengaplikasian VCO yang efektif untuk memperpanjang umur simpan strawberry. Rancangan penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan satu faktor yaitu metode pengaplikasian VCO (kontrol, dipping, dan spraying). Data karakteristik dianalisis secara statistik menggunakan one way ANOVA. Jika data menunjukkan hasl beda nyata antar perlakuan maka dilanjutkan uji DMRT pada α = 0,05. Hasil penelitian menunjukan bahwa VCO dapat mempertahankan susut bobot, warna, firmness, kadar air, TPT, Vitamin C, pH, TAT dan menurunkan total mikroba strawberry selama penyimpanan. Metode pengaplikasian Virgin Coconut Oil (VCO) dipping dan spraying efektif dalam menghambat pertumbuhan mikroba pada strawberry selama 12 hari penyimpanan.
STUDI PEMANFAATAN IKAN LELE DUMBO (Clarias gariepinus) DAN REBUNG (Dendrocalamus asper) DALAM PEMBUATAN SOSIS Siswanti Siswanti; Netti Herawati; Rahmayuni Rahmayuni
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

The sausage is processed products that is very popular among the community. Type of sausages in the market are beef sausage and chicken sausage.Sausages that can be also made from catfish which has good nutritional value as well as a new product which is appreciated by the public. The purposes of the study was to obtain the best sausage formulations of dumbo catfish and bamboo shoot using the SNI quality standards. The research was conducted experimentally using completely randomized design (CRD) with five treatments and four repetitions, followed by DNMRT test at 5% level. The treatment in this study were LDR1 (ratio catfish 95and bamboo shoots 5) LDR2 (ratio catfish 90 and bamboo shoots 10) LDR3 (ratio catfish 85 and bamboo shoots 15) LDR4 (ratio catfish 80 and bamboo shoots 20) and LDR5 (ratio catfish 75 and bamboo shoots 25). Parameters observed were the moisture, ash, fat, protein, carbohydrates, crude fiber contants and sensory evaluation. Results of the analysis of variance showed the addition of catfish and bamboo shoot significanlyaffectedall parameters. The results of the study found that the best treatment was LDR4 with a value of 62,68% moisture content, 1,65%ash, 4,15% fat,13,48% protein, 18,04% carbohydrates and fiber content 2,49% and an overall assessment of sensory preferred by panellists.  Keywords :sausage, catfish, bamboo shoots.
POTENSI PERAKARAN BIBIT TANAMAN NANAS BOGOR (Ananas comusus L. Merr) ASAL STEK DAUN MAHKOTA BUAH Karmanah Karmanah; Siswanti Siswanti
JURNAL SAINS NATURAL Vol. 3 No. 1 (2013): Sains Natural
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1138.723 KB) | DOI: 10.31938/jsn.v3i1.49

Abstract

Rooting
Koefisien Perpindahan Massa pada Ekstraksi Protein dari Biji Kecipir dengan Pelarut NaOH Harso Pawignyo; Siswanti Siswanti
Eksergi Vol 9, No 1 (2009): Versi Cetak
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v9i1.7577

Abstract

Koefisien Perpindahan Massa pada Ekstraksi Protein dari Biji Kecipir dengan Pelarut NaOH.
Co-Authors Aldila Cinantya Kasita Bara Yudhistira Bara Yudhistira Danar Praseptiangga Dea Anindita W Dian Rachmawanti Dian Rachmawati Edhi Nurhartadi Godras Jati Manuhara Harso Pawignyo Karmanah, Karmanah Lintang Sawitri Nugraheni Lukita Purnamayati Netti Herawati R Baskara A R. Baskara Anandito R. Baskara Katri Anandito Raden Baskara Katri Anandito Raden Baskara Katri Anandito Rahmayuni Rahmayuni Rohula Utami