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All Journal Jurnal Teknologi Dan Industri Pangan Jurnal Teknologi & Industri Hasil Pertanian
Neti Yuliana
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Agriculture, Biological Sciences & Forestry Computer Science & IT Industrial & Manufacturing Engineering

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Organic acids component of Tempoyak Neti Yuliana
Jurnal Teknologi dan Industri Pangan Vol. 16 No. 1 (2005): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (354.267 KB)

Abstract

This study was mainly conducted to identify the of organic acids component of tempoyak. Acidity and pH changes during fermentation process of fermented tempoyak were also evaluated. The results revealed that there were significant changes in pH ranging from 7 to 4 and acidity (6 mg/g- 38 mg/g) attributed to organic acids present in tempoyak. These organic acids were malic acid (145,9 mg/ml), followed by lactic acid (34,1 mg/ml), and small amount of acetic acid (14,2mg/ml). Key words: Tempoyak; organic acids; pH and acidity
IDENTIFIKASI SENYAWA ANTIMIKROBA ALAMI PANGAN PADA EKSTRAK KULIT BUAH NAGA MERAH DENGAN MENGGUNAKAN GC-MS [Identification of Food Natural Antimicrobe Compound from Red Dragon Fruit Peel Extract by GC-MS] Dewi Sartika; Sutikno Sutikno; Neti Yuliana; Syarifah R M
Jurnal Teknologi & Industri Hasil Pertanian Vol 24, No 2 (2019): Jurnal Teknologi & Industri Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1245.225 KB) | DOI: 10.23960/jtihp.v24i2.67-76

Abstract

The peel of red dragon fruit have a natural antimicrobe potency. This research have aim to explore the peel of red dragon fruit as an antimicrobe with used GC-MS. The result of research showed that content of the peel of red dragon fruit was dominated by ascorbic acid 2,6-dihexadecanoate (26,56%), oleic acid (24,08%), estra-1,3,4(10) trien-17 beta-ol (9,63%), 9,12-octa deca dienoic acid (Z,Z) (8,27%), and organic acid compound, phenol, flavonoid, esther (31,46%) that had an antimicrobe potency. The aplication of the red dragon fruit peel on Tongkol fish that was contaminated with E coli, showed that, there is a decrease of E coli as much as 1.47 x 109 koloni/g, significantly. The conclusion of research was the peel of red dragon fruit have a natural antimicrobe potency.
PROFIL DEPOT AIR MINUM ISI ULANG DAN PENERAPAN ANALISIS TOC PADA PEMERIKSAAN KUALITAS AIR MINUM BERDASARKAN SUMBER AIR YANG DIGUNAKAN DI BANDAR LAMPUNG [Profile of drinking water refill depot and application of TOC Analyisis as drinking water quality assessment based on water resources used in Bandar Lampung] Azhari Rangga; Harun Al Rasyid; neti yuliana; Gilang Muhammad E
Jurnal Teknologi & Industri Hasil Pertanian Vol 20, No 2 (2015): Jurnal Teknologi & Industri Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.861 KB) | DOI: 10.23960/jtihp.v20i2.86 - 96

Abstract

This study aimed to get a profile of the drinking water refill depots in Bandar Lampung and determined the relationship between total organic carbon (TOC) with the parameters required to analyze drinking water.  This study was consisted of two stages.  The first stage was a survey, and the second stage was analysis of water samples in the laboratory.  The survey form was direct observation in the field and filled a questionnaire which addressed to some places that produce  drinking water refill in Bandar Lampung.  Laboratory testing was consisted of a sample of the quality testing of physical, chemical, and microbiological properties.  Physical quality testing included testing of odor, turbidity, taste, temperature, total dissolved solid (TDS), and color.  Chemical quality testing included test of pH, total organic carbon (TOC), inorganic carbon (IC), and total carbon (TC).  For the microbiological quality testing included test contamination of total plate count and coliform contamination.  Data were analyzed with SPSS program.  The results showed that 86% depot of drinking water refill still using standard refining technology that used multiple micro filter and silica sand media filtration and activated carbon, while 14% drinking water refill depot had used reverse osmosis technology.  All samples of water from various sources of drinking water refill depots in the city of Bandar Lampung had met the requirements of drinking water quality.  The high value of the parameter TOC will be followed by high value of the parameter of pH and color as well, because the parameters of color and pH were positively correlated with TOC parameter.Keywords : drinking water, total organic carbon, water quality.
Co-Authors Azhari Rangga Dewi Sartika Gilang Muhammad E Harun Al Rasyid Sutikno Sutikno Syarifah R M