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Journal : Heuristic

EVALUASI METODE PENGUJIAN ANGKA LEMPENG TOTAL MENGGUNAKAN METODE PETRIFILM AEROBIC COUNT PLATE TERHADAP METODE UJI SNI 01.2332.2006 PADA PRODUK PERIKANAN DI LPPMHP SURABAYA Hartati, Fadjar Kurnia
Heuristic Vol 13 No 02 (2016)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v13i02.877

Abstract

The study aims to evaluate the testing methods Total Plate Count (ALT) which is easierand faster is Petrifilm Aerobic Plate Count (PAPC) against resistance in TPC testing infishery products, as well as compliance with the Indonesian National Standard (SNI) 012332.3-2006.This study held in Laboratory Quality Control and Testing of FisheryProducts (LPPMHP) Surabaya, East Java. This study three types of cultures breed bacteriaand 24 types of fishery products by using two methods of testing, as the reference test SNI01-2332.3-2006 and in comparison to the PAPC. The results of the test, then analyzedusing statistical calculations to evaluate the suitability of the ISO 4833 test method.Finally, note that ALT testing using PACP in accordance with ISO 01-2332.3-2006 as astandard method of testing, and has a good fit in the ALT test with a sample of fisheryproductsKeywords : total plate count, ISO 4833, petrifilm aerobic count plate, SNI. 01-2332.3-2006
PENGEMBANGAN PRODUK JELLY DRINK TEMULAWAK (Curcuma xanthorrhiza Roxb.) SEBAGAI PANGAN FUNGSIONAL Hartati, Fadjar Kurnia; Djauhari, Arlin Besari
Heuristic Vol 14 No 02 (2017)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v14i02.1175

Abstract

People still consider the curcumin as a herb that has a taste and smell that is less preferred so as to increase consumption of ginger need to be diversified more modern products, one of which is jelly drink. Success in the manufacture of jelly drinks is determined by the concentration of gelling agents. The objective of the research was to determine the effect of carrageenan and sugar concentration on the physical and organoleptic properties of jelly drink curcumin, looking for the best treatment, which was then best tested for curcumin, total phenol and antioxidant activity to ensure that the product was potential as one of functional food products. With Randomized Block Design (RAK) method 2 factors, namely the concentration of carrageenan (K) and sugar (G), each consisting of 3 levels and repeated 4 times so that there are 36 samples. The results showed that the average total soluble solids ranged from 10.5 to 17.2 o Brix, the mean of sineresis ranged from 5.11 to 7.16% and the mean suction rate ranged from 28.17 to 49.05 seconds / 50 ml. The best treatment was found in combination treatment of 1% carrageenan and 10% sugar (K3G1) containing curcuminoid 1,2415%, phenol jelly drink curcumin 2,2659 mg GAE / g sample and IC50 value of 73 ppm. Keywords: curcumin, carrageenan, jelly drink, antioxidant
ALTERNATIF PENGGANTI BORAKS PADA PEMBUATAN KERUPUK PULI Hartati, Fadjar Kurnia
Heuristic Vol 15 No 02 (2018)
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/he.v15i02.2142

Abstract

Tujuan penelitian ini adalah untuk mencari konsentrasi penggunaan sodium bikarbonat/soda kue (NaHCO3) dan air abu merang yang tepat untuk pembuatan kerupuk puli dan mengetahui pengaruh penggunaan soda kue dan air abu merang terhadap sifat kimia, sifat fisik dan organoleptik kerupuk puli. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang disusun secara faktorial dengan 2 faktor , masing-masing faktor terdiri dari 2 dan 3 level. Faktor  pertama (A) adalah jenis bahan tambahan pangan  (A1 = NaHCO3  dan A2 = Air abu merang 1% (b/v). Adapun faktor kedua (B) adalah konsentrasi bahan tambahan pangan yaitu B1 = 0.1%; B2 = 0.3% dan B3 = 0.5%.  Hasil penelitian menunjukkan perlakuan terbaik pada kerupuk dengan bahan tambahan makanan soda kue 0.5% yang mempunyai kadar air 7.85%; kadar abu 1.46%; daya kembang 420.48%; daya serap minyak  2.92%; daya patah  mentah 23558.33 N/m; daya patah matang 10.60N/m. Sedangkan parameter  organoleptik  memiliki  nilai  yaitu  rasa 4.95 dan  kerenyahan  5.60. Kata kunci: kerupuk puli, soda kue, boraks, garam bleng, air abu merang