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KARAKTERISTIK FISIKO-KIMIA TEPUNG UBI JALAR (Ipomoea batatas) VARIETAS SUKUH DENGAN VARIASI PROSES PENEPUNGAN [Physico-Chemical Characteristics of Sukuh Variety Sweet Potatoes (Ipomea batatas) Flours Made with Various Methods] Elvira Syamsir; Trifena Honestin
Jurnal Teknologi dan Industri Pangan Vol. 20 No. 2 (2009): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

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Abstract

Sweet potato has considerable potencies to support food diversification program based on flour and starch product. Various processing  methods  in the flour processing show great effect on alteration of the physicochemical properties of sweet potato flour. This research investigated the effects of different flour processing methods on the physicochemical properties of sweet potato flour. The results showed that processing method had a significant effect on water content, bulk density, colour (L, a, b), microscopic properties of starch granule, water absorption index, water soluble index and pasting properties of the sweet potato flour.
PENERIMAAN KONSUMEN AKAN MINUMAN SARI BUAH JERUK LOKAL DI BATU-JAWA TIMUR Lyli Mufidah; Trifena Honestin; Zainuri Hanif
Jurnal Pengkajian dan Pengembangan Teknologi Pertanian Vol 24, No 3 (2021): Desember 2021
Publisher : Balai Besar Pengkajian dan Pengembangan Teknologi Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpptp.v24n3.2021.p263-273

Abstract

The Consumer Acceptance of Local Citrus Drink in Batu-East Java Fruit juice products in Indonesia are still dependent on imported raw materials. This situation needs to be our concern, considering that Indonesian citrus have many varieties and qualities that are not inferior to imported fruit. Therefore, a study was conducted on consumer acceptance of local citrus juice produced in Indonesian Citrus and Subtropical Fruits Research Institute (ICSFRI) using raw materials of four local mandarin varieties, namely Satsuma, Batu 55, JRM and Terigas. Eighty-seven respondents participated in this survey that held in July 2019. Product satisfaction and performance were analyzed using the CSI and IPA methods. Respondent consumptions patterns were also seen to find out the initial description of the quantity and benefit that were sought by consumers of citrus drinks. The results showed that the most preferred processed products from citrus were drinks, with consumption pattern of 1-2 times (37,9%) and 3-4 times (31%) each month. Here, health becomes the main reason for consuming this product. From the analysis, it is illustrated that all respondents received well the three local citrus juice (Terigas, Satsuma, JRM) products, where quality improvement still needs to be done. Citrus varieties that become the main recommendation is Terigas citrus because it’s fulfilled three main citrus juice attributes (citrus flavor, aroma and color) and have the highest customer satisfaction value. This is also supported by the higher vitamin C content, which is needed to increase body immunity, especially in this pandemic era. Keywords: customer satisfaction index (CSI), fruit juice, local citrus, index performance analysis (IPA), vitamin CABSTRAKProduk sari buah di Indonesia masih menggantungkan bahan baku produknya dari buah impor. Hal ini menjadi perhatian, mengingat jeruk Indonesia memiliki beragam varietas dan kualitas yang tidak kalah dengan buah impor. Oleh karena itu dilakukan studi terhadap penerimaan konsumen akan minuman sari buah jeruk lokal yang diproduksi di Balai Penelitian Tanaman Jeruk dan Buah Subtopika (Balitjestro) dengan menggunakan bahan baku empat varietas jeruk keprok lokal, yakni jeruk Satsuma, Batu 55, JRM dan Terigas. Delapan puluh tujuh responden berpartisipasi dalam survei yang diadakan bulan Juli 2019. Kepuasan dan kinerja produk dianalisis menggunakan metode CSI dan IPA. Pola konsumsi responden juga dilihat untuk mengetahui gambaran awal kuantitas dan manfaat yang dicari oleh konsumen minuman sari buah jeruk. Hasil penelitian menunjukkan bahwa produk olahan dari jeruk yang paling disukai adalah minuman, dengan pola konsumsi 1-2 kali (37,9%) dan 3-4 kali (31%) setiap bulannya serta kesehatan sebagai alasan utama dalam mengkonsumsi produk ini. Dari analisis tergambar bahwa keseluruhan responden menerima dengan baik tiga produk sari buah jeruk lokal, dimana peningkatan kualitas masih perlu dilakukan. Varietas jeruk yang menjadi rekomendasi utama adalah jeruk Terigas, karena telah memenuhi tiga atribut utama (rasa jeruk, aroma, dan warna) serta memiliki nilai kepuasan konsumen paling tinggi. Hal ini juga ditunjang dengan kandungan vitamin C yang lebih tinggi untuk meningkatkan imunitas tubuh, terutama di era pandemi ini.Kata kunci: customer satisfaction index (CSI), index performance analysis (IPA), jeruk lokal, sari buah, vitamin C
Karakteristik Minuman Sari Jeruk Keprok Terigas dengan Penambahan beberapa Jenis Penstabil Imro’ah Ikarini; Trifena Honestin; Hasim Ashari; Zainuri Hanif
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Ikarini I, Honestin T, Ashari H, Hanif Z, 2020.  Karakteristik Minuman Sari Jeruk Keprok Terigas dengan Penambahan beberapa Jenis Penstabil. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Postharvest technology is needed so that the abundant citrus fruits at harvest time can be utilized and at the same time can increase the added value of these oranges. The potential to increase the added value of Indonesian citrus products is still huge. The processing of oranges into fruit juice drinks can be one way to increase the added value of oranges. Orange juice is currently a trendy drink as it contains vitamin C, which increases the human body's immunity in the pandemic era. The study aims to determine the effects of several types of stabilizers addition with several formulations on the physical and chemical characteristics, as well as sensory properties of the panellists' preference for Keprok Terigas juice. This study made use of Completely Randomized Design (CRD) with two factors, the first factor was the type of stabilizer (CMC, xanthan gum, arabic gum) and the second factor was the concentration of the stabilizer (0.025%, 0.05%, 0.075%, 0.1%). Results of the study indicated that vitamin C contained in the citrus fruit juice ranged from 13.49 to 24.69 mg/100 grams. Citrus fruit juice had a total dissolved solid value of 11.10 -12.63, pH was 3.535-3.787, total acid was 4.567-7.433 and viscosity value of 4.167-43.500 cp. The treatment of several types of stabilizers affected the value of vitamin C content, viscosity, and total dissolved solids, yet it gave no affect on the pH of the citrus juice.
Pengaruh Sari Jeruk Siam Pontianak dan Keprok Terigas terhadap Kualitas Es Krim Trifena Honestin; Imro’ah Ikarini; Hasim Ashari; Zainuri Hanif
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Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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Abstract

Honestin T, Ikarini I, Ashari H, Hanif Z.  2020. Effects of siam pontianak and keprok terigas juice on the quality of ice cream. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-8 Tahun 2020, Palembang 20 Oktober 2020. pp. xx. Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Ice cream products made of orange juice may increase the added value of the products. Besides, vitamin C contained in the oranges also contributes to human’s health. The study aims to determine effects of differences in the citrus varieties and the proportion of water compared to orange juice on the overrun value, total dissolved solids, melting rate, vitamin C content, sensory properties of scoring and the panellist’s preference for orange ice cream. The study was designed using Completely Randomized Design with two factors, namely differences in citrus varieties (Siam Pontianak and Keprok Terigas) and the  proportion of orange juice compared to water (1:2; 1:1; 2:1). The results show that the Keprok Terigas ice cream had the highest preference value on the parameters of colour, aroma, taste and texture compared to those of Siam orange ice cream. The highest content of vitamin C was obtained from Siam orange ice cream in the proportion of orange juice compared to water 1:1, vitamin C content was 48.40 mg/100 grams. Total dissolved solids of the orange ice cream ranged from 2.267 – 2.600, pH was between 4.933 – 6.180, the overrun value was between 52.320 – 56.780% and melting rate was between 790.1 - 884.5 seconds. The differences between the Keprok Terigas and Siam Pontianak varieties have affect the value of vitamin C, pH, and overrun. The treatment of the proportion of orange juice: water affected the pH value, total dissolved solids, and overrun, but did not affect the melting rate.
UTILIZING EXPERIMENTAL COMBINATION DESIGN: OPTIMIZATION OF FOOD BAR RECIPE BASED ON PURPLE SWEET POTATO Tri Dewanti Widyaningsih; Kiki Fibrianto; Trifena Honestin; Sigalingging, Catherine Novita Sari
Jurnal Teknologi Pertanian Vol. 24 No. 3 (2023)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtp.2023.024.03.6

Abstract

Modern food technology can create nutritious goods that are useful and simple to consume. Food bars are convenient, calorie-dense, and healthy items. It is usually made from a variety of culinary ingredients combined and then molded into a sturdy, handy product. The goal of this study is to create a food bar using a blend of dried strawberries (DS), moringa flour (MF), mung bean flour (MBF), and purple sweet potato paste (PSPP). The formulation of DS, MBF, MF, and PSPP was improved by utilizing a mixture design of experiments with Minitab software. The predicted outcomes of this formulation are maximal antioxidant activity, maximum total flavonoids, and maximum total phenolic. Using 54.84% purple sweet potato paste (PSPP), 6.21% moringa flour (MF), 33.95% mung bean flour (MBF), and 5.00% dried strawberries (DS) allowed for an ideal maximal antioxidant activity. The antioxidant activity was 16.44 mg TE/g; the total flavonoid was 11.35 mg QE/g; and the total phenolic was 10.70 mg GAE/g.