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All Journal Jurnal Ilmu dan Teknologi Hasil Ternak Jurnal Penelitian Pascapanen Pertanian Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) Jurnal Pangan dan Agroindustri Warta IHP (Warta Industri Hasil Pertanian) E-Dimas: Jurnal Pengabdian kepada Masyarakat Jurnal Aplikasi Teknologi Pangan Journal of Applied Food Technology Jurnal Teknologi Pangan Jurnal Ilmiah Sains Jurnal Agripet

Heni Rizqiati

Food Technology Department, Faculty Of Animal And Agricultural Sciences, Diponegoro University, Semarang

Author-ID : 3637363

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Education Industrial & Manufacturing Engineering Mathematics Physics Social Sciences Veterinary Other

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The Effect of Different Type Drying Methods on Chemical Characteristics and Microbiology of Goat Milk Powder Kefir Nurwantoro Nurwantoro; Siti Susanti; Heni Rizqiati
Journal of Applied Food Technology Vol 7, No 1 (2020)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

The research aims to test and compare the chemical characteristics and total Lactic Acid Bacteria or LAB of goat milk powder kefir that was produced from cabinet drying, freeze drying and spray drying. Kefir was made from goat milk since it was found as a good digestibility, no β-lactoglobulin, and high protein. Data analysis was performed with the test analysis of variance with a significance level of 5% followed by Duncan testing if significant result was detected. Analysis of total acid was conducted using titration. Analysis of proteins was conducted using Kjeldahl method. Water content analysis was performed using oven and ash content was analyzed using furnace. Analysis of fat content was conducted using Soxhlet method. Analysis of total LAB and total yeast were done using Total Plate Count (TPC). As results, drying method significantly affected (p<0.05) water content, ash content, and total LAB but there was no significant effect (p<0.05) on the total acid, protein content, fat content, and total yeast. As conclusion, the best treatment of drying method in making goat milk kefir powder was spray drying

Effect of High Fructose Syrup (HFS) Addition on Chemical and Organoleptic Properties of Green Coconut Water Kefir Lita Lusiana Surja; Bambang Dwiloka; Heni Rizqiati
Journal of Applied Food Technology Vol 6, No 1 (2019)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

This research aims to determine the effect of High Fructose Syrup (HFS) addition to carbon dioxide (CO2) content, ethanol content and organoleptic properties of green coconut water kefir, and to determine the ideal HFS concentration for green coconut water kefir. Complete Randomized Design is used in this research with 5 treatments and 4 replications i.e. T0 (0% v/v HFS), T1 (2.5% v/v HFS), T2 (5% v/v HFS), T3 (7.5% v/v HFS), and T4 (10% v/v HFS). The CO2 content is measured by sodium carbonate (Na2CO3) titration, ethanol content is measured by distillation, while the organoleptic properties that included level of sourness, level of sweetness, soda sensation, sour aroma, and viscosity are done by 25 panelists. The results show that the addition of HFS is statistically gave significant effect to the CO2 content and organoleptic properties (P<0,05). However, the ethanol content, which analyzed using empirical model of quadratic polynomial regression, show that the addition of HFS is incompatible to the ethanol content of green coconut water kefir. The most optimal HFS concentration is 7.5% v/v, resulting CO2 content of 0.096%; ethanol content 1.545%; and desirable organoleptic properties, which are low level of sourness, high level of sweetness, very high soda sensation, low sour aroma, and high viscosity.

Texture, Water Absorption, aw and Hedonic Quality Flakes White Millet (Panicum miliaceum) with Addition of Pumpkin Flour (Cucurbita moschata) Sabrina Sabiella Husna; Antonius Hintono; Heni Rizqiati
Journal of Applied Food Technology Vol 7, No 2 (2020)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

This research investigated the effect of pumpkin flour on texture, water absorption, aw, and hedonic quality of white millet flakes. The research design used Completely Randomized Design with one factor of pumpkin flour concentration. White millet, sugar, salt, and pumpkin flour were used as materials. Pumpkin flour was added to the flakes’ dough at a concentration of 0, 10, 20, and 30% (w/w). The results showed that the pumpkin flour provided a significant effect (p <0.05) to texture, water absorption, and hedonic quality of flakes, but did not provide significant affect (p> 0.05) to aw. The most optimal concentration of pumpkin flour was 10% proved by texture of 395 gf, water absorption of 95%, aw of0,25, and best organoleptic properties which were slightly yellow color, slightly fragrant aroma of pumpkin, a slight taste of pumpkin, and crispy texture. As conclusion, the utilization pumpkin flour to the dough may affected to the physical appearance in the flakes.

Effect of Yellow Pumpkin (Cucurbita moschata) Flour Addition on Proximate Levels and Calories of White Millet (Panicum miliaceum) Flakes Hazna Zhavira; N Nurwantoro; Heni Rizqiati
Journal of Applied Food Technology Vol 7, No 2 (2020)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17728/jaft.7268

This research aims to determine the effect of adding pumpkin flour with different concentrations to the proximate levels and calories of white millet flakes. Complete randomized design used in this research with 4 treatments and 5 replications. This research consisted of formulations which was divided into 4 treatments in the form of adding pumpkin flour with concentrations of 0%, 10%, 20%, and 30% w/w white millet. The material used was white millet, pumpkin, sugar, salt, and water. Proximate levels were calculated using proximate analysis while calories was calculated based on the calculation of carbohydrate, protein, and fat composition of the samples produced. The results showed that the addition of pumpkin flour with different concentrations had a significant effect (p<0.05) on protein content, fat content, ash content, crude fiber content, carbohydrate content, calories, and had no effect (p>0.05) on water content. As conclusion, the addition of pumpkin flour 30% was the best treatment proved by its highest fiber content and low in calories.

Analisis Total Padatan Terlarut, Keasaman, Kadar Lemak, dan Tingkat Viskositas pada Kefir Optima dengan Lama Fermentasi yang Berbeda Mohammad Kresna Bayu; Heni Rizqiati; Nurwantoro Nurwantoro
Jurnal Teknologi Pangan Vol 1, No 2 (2017)
Publisher : Program Studi Teknologi Pangan

Kefir Optima merupakan jenis minuman fermentasi yang dibuat dengan menambahkan kefir grains ke dalam susu, selain itu juga menjadi sumber probiotik utama dan memiliki banyak manfaat untuk kesehatan manusia. Penelitian bertujuan untuk mengetahui pengaruh lama fermentasi terhadap total padatan terlarut, kadar lemak, dan tingkat viskositas kefir optima. Bahan yang digunakan dalam penelitian ini adalah susu sapi segar, kefir grains, NaOH 0,1 N, Phenolphtalein (PP) 1%, H2SO4, isoamil alkohol dan aquades.. Penelitian menggunakan Rancangan Acak Lengkap (RAL) dengan variasi perlakuan yang diberikan adalah (T1) lama fermentasi 12 jam, (T2) lama fermentasi 24 jam, (T3) lama fermentasi 36 jam, dan (T4) lama fermentasi 48 jam. Parameter yang diamati adalah total padatan terlarut, keasaman, kadar lemak, dan tingkat viskositas kefir optima. Data hasil pengujian dianalisis menggunakan uji Analysis of Variance (ANOVA) dengan taraf signifikansi 5% dan apabila terdapat perbedaan maka dilanjutkan dengan uji Duncan. Penambahan lama fermentasi memberikan pengaruh nyata terhadap total padatan terlarut, keasaman dan kadar lemak namun tidak memberikan pengaruh nyata terhadap tingkat viskositas. Semakin lama waktu fermentasi, total padatan terlarut dan kadar lemak semakin menurun dan keasaman meningkat.

Pengaruh Substitusi Buah Naga Merah pada Kefir Sari Kedelai terhadap Kadar Vitamin C, Total Khamir, Kadar Alkohol dan Tingkat Kesukaan anissa fitria ningrum; Heni Rizqiati; Yoga Pratama; Bambang Dwiloka
Jurnal Teknologi Pangan Vol 2, No 2 (2018)
Publisher : Program Studi Teknologi Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jtp.2018.20767

Kefir merupakan produk olahan susu yang berasal dari hasil fermentasi menggunakan butir kefir. Penelitian ini bertujuan untuk mengetahui pengaruh substitusi buah naga merah pada kefir sari kedelai terhadap kadar vitamin C, total khamir, kadar alkohol dan tingkat kesukaan. Kadar vitamin C diketahui melalui pengujian menggunakan metode titrasi iodometri. Total khamir kefir didapat dengan melakukan inkubasi sampel pada media PDA selama 72 jam. Kadar alkohol dihitung dengan melakukan destilasi kemudian dihitung berat jenisnya menggunakan piknometer. Sedangkan tingkat kesukaan didapat dengan melakukan uji sensori terhadap 25 panelis agak terlatih. Penambahan substitusi buah naga merah pada kefir sari kedelai memberikan pengaruh pada kadar vitamin C, total khamir, kadar alkohol dan tingkat kesukaan. Uji kadar vitamin C yang dilakukan menunjukkan bahwa substitusi buah naga merah sebesar 30% memberikan kadar vitamin C paling baik yaitu 46,11 mg/ 100 g sampel. Kadar alkohol pada kefir dengan substitusi buah naga merah sebesar 20% memiliki kadar alkohol yang paling baik dengan hasil 1,53%. Uji total khamir yang dilakukan menunjukkan bahwa terdapat peningkatan pada tiap perlakuan walaupun tidak berbeda nyata. Uji tingkat kesukaan menunjukkan bahwa terdapat perbedaan yang nyata terhadap rasa dan warna kefir sari kedelai yang disubstitusi buah naga merah.

Total Padatan Terlarut, Viskositas, Total Asam, Kadar Alkohol, dan Mutu Hedonik Water Kefir Semangka dengan Lama Fermentasi yang Berbeda ritna ningsih; heni rizqiati; nurwantoro nurwantoro
Jurnal Teknologi Pangan Vol 3, No 2 (2019)
Publisher : Program Studi Teknologi Pangan

Water kefir semangka merupakan produk pangan hasil fermentasi kefir grain yang dibuat dari bahan baku yaitu sari buah semangka. Penelitian ini bertujuan untuk mengetahui pengaruh lama fermentasi yang berbeda terhadap total padatan terlarut, viskositas, total asam, kadar alkohol dan mutu hedonik yang meliputi rasa, aroma, warna, sensasi soda dan overall kesukaan water kefir semangka. Desain penelitian yang digunakan adalah Rancangan Acak Lengkap (RAL) monofaktor dengan 4 perlakuan serta 5 kali pengulangan. Variasi perlakuan lama fermentasi yang diberikan yaitu T1 = 12 jam, T2 = 24 jam, T3 = 36 jam dan T4 = 48 jam. Data hasil pengujian total padatan terlarut, viskositas, total asam dan kadar alkohol dianalisis menggunakan Analysis of Variance (ANOVA) dengan taraf signifikansi 5% dan dilanjut Uji Wilayah Ganda Duncan apabila terdapat pengaruh. Data uji hedonik dianalisis menggunakan uji Kruskal Wallis dengan taraf signifikansi 5% dan apabila ada pengaruh dilanjut uji Mann Whitney. Hasil penelitian menunjukkan bahwa perbedaan lama fermentasi memberikan pengaruh yang nyata (P<0.05) terhadap total padatan terlarut, viskositas, total asam, dan kadar alkohol. Hasil uji mutu hedonik menunjukkan bahwa lama fermentasi yang berbeda berpengaruh nyata (P<0,05) terhadap rasa dan overall kesukaan, namun tidak berpengaruh nyata terhadap aroma, warna dan sensasi soda. Water kefir watermelon is a fermented food product of kefir grain made from watermelon juice. This study aims to determine the effect of different fermentation time on total dissolved solids, viscosity, total acid, alcohol content and hedonic quality which includes taste, aroma, color, soda sensation and overall preferences of watermelon water kefir. The research design used was a monofactor Complete Random Design (CRD) with 4 treatments and 5 repetitions.Variations of fermentation time treatment given are T1 = 12 hours, T2 = 24 hours, T3 = 36 hours and T4 = 48 hours. Data from the results of testing of total dissolved solids, viscosity, total acid and alcohol content were analyzed using Analysis of Variance (ANOVA) with a significance level of 5% and followed by the Duncan Multiple Range Test if there was influence. The hedonic test data were analyzed using the Kruskal Wallis test with a significance level of 5% and if there was a continuing influence the Mann Whitney test. The results showed that the differences in fermentation time had a significant effect (P <0.05) on total dissolved solids, viscosity, total acid, and alcohol content. Hedonic quality test results showed that different fermentation times significantly affected (P<0.05) taste and overall preference, but did not significantly affect the aroma, color and soda sensation.

Pengaruh Penambahan Ekstrak Jahe Putih terhadap Sifat Kimia Permen Karamel Susu Kedelai Luna Auria Andansari; Antonius Hintono; Heni Rizqiati
Jurnal Teknologi Pangan Vol 4, No 1 (2020)
Publisher : Program Studi Teknologi Pangan

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan ekstrak jahe putih terhadap sifat kimia permen karamel susu kedelai. Materi yang digunakan adalah susu kedelai, ekstrak jahe, sukrosa, sirup glukosa, dan margarin. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 4 kali ulangan. Penelitian ini terdiri dari formulasi yang dibagi menjadi 5 perlakuan berupa T0 (perlakuan kontrol) T1 (ekstrak jahe 0,5%), T2 (ekstrak jahe 1%), T3 (ekstrak jahe 1,5%), dan T3 (ekstrak jahe 2%) Analisis data untuk kadar protein dan kadar lemak menggunakan Analisis of Variance (ANOVA) pada taraf signifikansi 5%, sedangkan analisis kadar fenol dan aktivitas antioksidan dianalisis secara deskrtiptif. Hasil menunjukkan bahwa penambahan ekstrak jahe putih tidak memberi pengaruh nyata (p˃0,05) terhadap sifat kimia permen karamel susu kedelai berupa kadar lemak dan kadar protein permen karamel susu kedelai. Kadar fenol dan aktivitas antioksidan permen karamel susu kedelai akan semakin meningkat seiiring dengan semakin meningkatnya ekstrak jahe putih yang ditambahkan. This research was to determine the effect of adding ginger extract on chemical characteristics of soy milk caramel candy. The material used is soy milk, ginger extract, sucrose, glucose syrup, and margarine. The experimental design used was Completely Randomized Design (CRD) with 5 treatments with 4 replication. The study consists of a formulation which was divided into 5 treatments i.e.T0 (control), T1 (ginger extract 0.5%), T2 (ginger extract 1%), T3 (ginger extract 1.5%), and T4 (ginger extract 2%). Data analysis for protein content and fat content used Analysis of Variance (ANOVA) at a significance level of 5%, while analysis of phenol levels and antioxidant activity were analyzed descriptively. The result showed that soy milk caramel candy with the addition of ginger extract didn`t give real effect (p˃0.05) to protein content and fat content of the soy milk caramel candy. The higher the concentration of ginger extract addition on soy milk caramel candy will make phenol levels and antioxidant activity increase.

Karakteristik Fisikokimia Curd Sari Kedelai dengan Penambahan Renet dan Belimbing Wuluh (Averhoa bilimbii) sebagai Koagulan Olivia Prastiandani; Ahmad Ni'matullah Al-Baarri; Heni Rizqiati; Yoyok Budi Pramono
Jurnal Teknologi Pangan Vol 2, No 2 (2018)
Publisher : Program Studi Teknologi Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jtp.2018.22302

Keasaman bahan penggumpal merupakan faktor penting dalam proses koagulasi curd kedelai. Penelitian ini bertujuan untuk menganalisis karakteristik fisikomimiawi curd sari kedelai yang dihasilkan dari koagulan sari belimbing wuluh dengan dan tanpa pengenceran. Sari buah belimbing wuluh sebanyak 7% (v/v) dengan pengenceran (1:1, v/v) dan tanpa pengenceran dan renet (0,01% b/v) ditambahkan pada sari kedelai untuk menghasilkan curd. Curd yang didapat langsung dianalisis jumlah rendemen, nilai pH, kekerasan, dan warna. Hasil penelitian menunjukkan bahwa pengenceran koagulan belimbing wuluh secara signifikan meningkatkan jumlah rendemen, nilai pH, dan tingkat kekuningan namun mengurangi kekerasan tekstur curd. Penelitian ini dapat disimpulkan bahwa pengenceran koagulan sari belimbing wuluh dapat secara keseluruhan mempengaruhi karakteristik fisikokimiawi curd kedelai.Physicochemical Characteristics of Soy-Cheese Curd with Addition Rennet and Averrhoa bilimbii Juice as CoagulantAbstractThe acidity of coagulant is an important factor in the process of soy curd coagulation. This research aimed at analyze the physicochemical characteristics of soy curd that were coagulated with Averhoa bilimbii juice with and without dilution. Averhoa bilimbii juice as much as 7% (v/v) with dilution (1:1,v/v) and without dilution and rennet (0,01% b/v) added to soybean milk to obtain the curd. Curd obtained directly analyzed the amount of yield, pH value, hardness, and yellowish level. The result showed that dilution coagulant of Averhoa bilimbii significantly increased yield, pH value, and yellowish level but reduced hardness of texture curd. This research can be concluded that dilution coagulant of Averhoa bilimbii overall influence the physicochemical characteristic of soy curd.

Pengaruh Substitusi Kefir Terhadap Sifat Kimia, Total Bakteri Asam Laktat (BAL), dan Organoleptik Es Krim Cynthia Faradila; Heni Rizqiati; Nurwantoro Nurwantoro
Jurnal Teknologi Pangan Vol 3, No 2 (2019)
Publisher : Program Studi Teknologi Pangan

Es krim adalah jenis makanan semi padat yang dibuat dengan cara pembekuan tepung es krim atau dari campuran susu, lemak hewani maupun nabati, gula dengan atau tanpa bahan makanan lain dan bahan makanan yang diijinkan. Kefir dapat dijadikan salah satu bahan pendukung dari pembuatan es krim karena mempunyai kadar protein yang cukup tinggi serta kaya akan probiotik yang diharapkan dapat meningkatkan kualitas fisik dan kimia dari es krim yang dihasilkan nanti. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi substitusi kefir terhadap pH, total padatan, total BAL dan mutu organoleptik ranking dari es krim kefir. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan perlakuan (T0) kontrol, (T1) substitusi 25%, (T2) substitusi 50%, (T3) substitusi 75%, dan (T4) substitusi 100%. Parameter yang diamati adalah pH, total padatan, total BAL dan mutu organoleptik ranking meliputi tingkat rasa asam, aroma asam, kekentalan, dan kelembutan es krim kefir. Parameter pH, total padatan, total BAL akan dianalisis menggunakan uji Analysis of Variance (ANOVA) dengan taraf signifikansi 5% dan apabila terdapat pengaruh nyata maka akan diuji lanjut dengan uji Duncan, sedangkan untuk mutu organoleptik akan diuji menggunakan uji Kruskall Wallis, apabila ada pengaruh nyata maka diuji lanjut menggunakan uji Man Whitney. Hasil penelitian menunjukkan perbedaan konsentrasi substitusi kefir memberikan pengaruh nyata pada nilai pH, total Bakteri Asam Laktat (BAL), total padatan dan mutu organoleptik ranking yang meliputi rasa asam, aroma asam, kekentalan, kelembutan es krim.

Co-Authors Abdul Rohman Abdul Rohman Rohman Ahmad Ni'matullah Albaari Ailsa Afra Mawarid Al-Baarri, Ahmad Ni'matullah Anang M Legowo Andi Febrisiantosa Andi Febrisiantosa anissa fitria ningrum Antonius Hintono Bambang Dwiloka Betti Meidia Pratiwi Bhakti Etza Setiani Claradhita Ayu Shauma Claradhita Ayu Shauma Cynthia Faradila Dewandhaka Andaru Dhea Luthfia Ramadhanti endra fajar pratiwi Enjui Pehulisa Br Barus Fahmi Arifan Galih Ayu Kinteki Hazna Zhavira Herni Nur Sabrina Herostika Insani ISTNA MANGISAH Jundina Muthia Zakiy Lila Setiawati Lita Lusiana Surja Lorentia Lydia Margareth Luna Auria Andansari Lusida Mulia Arganis Lusida Mulia Arganis Luthfiyah Nur Sulistiyani Martha Widi Lestari Masykuri masykuri Miranti Devita Mochammad Dicky Zulkharisma Mohammad Ihsan Yahya Prayoga Mohammad Kresna Bayu Mulyana Hadipernata N Nurwantoro Nona Tiama Parera Nurwantoro . Nurwantoro Nurwantoro Nyoman Suthama Olivia Prastiandani Prima Dewi Ramadhani Puji Nugroho Putri Nur Anggraini Rani Khasanah Rani Oktaviani Saraswati Rani Widya Pramesthi Rio Sentosa ritna ningsih Rr. Clarisa Puspa Ramadhanie Mochtar Sabrina Sabiella Husna Satrio Yudho Widiantoro Savira Oktavina Cahyani Septi Hardini Setya Budi M. Abduh Siti Susanti Sri Kusmawati Sri Oktavia Ginting Syavira Aulia Triana Setyawardani Valentinus Priyo Bintoro Vannesya Fadjri Prastiwi Widia Pangestika Winda Chelsy Tarihoran Wisnu Broto Wisnu Pangestu Setiaji Yehezkiel Bobby Slamet Yoga Pratama Yoga Pratama Yoga Pratama Yoga Pratama Yolanda Yunivia Yoyok Budi Pramono Yoyok Budi Pramono Yoyok Budi Pramono Yoyok Pramono

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