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Food Science and Technology Journal (Foodscitech)

foodscitech
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Published by Universitas Dr. Soetomo Surabaya

ISSN : 26221985 EISSN : 26224127 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Food Science and Technology Journal (Foodscitech) is an online journal in the food science, food technology, nutrition, which also includes about the food chemistry science, biochemistry, microbiology, food engineering, food safety, food quality, food sensory, functional food, health food and the other fields that are related to the food ISSN 2622-1985 (Print) ISSN 2622-4127 (Online).

Arjuna Subject : -

Articles 143 Documents

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Optimization of Time, Temperature, and pH for the Extraction of Anthocyanin from Buni (Antidesma bunius) Fruit William Juhadi; Abdullah Muzi Marpaung
Food Science and Technology Journal (Foodscitech) Vol 4 No 1 (2021)
Publisher : Universitas Dr Soetomo

The Box-Behnken design to find the optimum condition for anthocyanin extraction of Buni (Antidesma bunius) fruit powder was applied. Color intensity (CI), total monomeric anthocyanin (TMA), total phenolic content (PC), and antioxidant activity (AA) were the parameters selected to express optimality resulted from the extraction process. The three studied factors were temperature (30-90oC), time (30-90 minutes), and pH of solvent (1-3). The extraction was conducted in a water bath shaker under no light by HCl-acidified water as a solvent with a 1:25 (w/v) powder to solvent ratio. The quadratic model described the effect of factors on CI, TMA, and AA of buni fruit extract, while the linear model suitable for the total phenolic content. All factors influenced the CI and TMA, but time was insignificant for PC and antioxidant activity (p < 0.05). The optimum parameter for extraction was at 68oC for 30 minutes with pH 1 solvent. The 95% confidence interval of CI, TMA, PC, and AA were 40.29 ± 0.91, 555.17 ± 13.34 mg/l, 1084.4 66.845 ± 66.85 mg GAE/l, and 45.00 ± 2.56 % inhibition, respectively. The color and anthocyanin stability test showed that the extract was almost colorless at pH 5-6, but the anthocyanin was relatively stable with half-life 28 and 17.6 days, respectively. At pH 7-8 the stability of purple-blue color and anthocyanin of the extract was extremely low. The half-life of the color and anthocyanin was less than 2 and 10 hours, respectively.

Evaluation of Phytochemicals And Antioxidant Activity (IC50) of Bintaro Fruit Ethanol Extract (Cerberaodollam L.) Sutrisno Adi Prayitno; Lilla Puji Lestari; Dwi Retnaningtyas Utami; Nadhifah Salsabila
Food Science and Technology Journal (Foodscitech) Vol 4 No 1 (2021)
Publisher : Universitas Dr Soetomo

The phytochemical compounds in bintaro fruit can be used as herbs to maintain health. The compounds that play a role are flavonoids and phenols. These two compounds can be used as a reference for measuring the level of antioxidant activity in natural materials. There is a correlation between total phenols, total flavonoids, and antioxidants (IC50) found in natural ingredients. The purpose of this study was to determine the total phenol content, flavonoids, and antioxidant activity in the ethanol extract of Bintaro fruit. Bintaro fruit was extracted using ethanol solvent by maceration method which was then evaporated with a rotary evaporator on the obtained macerate. The extract obtained was then analyzed for levels of total flavonoids, total phenols, and antioxidants (IC50). Ethanol extract of bintaro fruit in the study produced total phenol content of 73.04 mg GAE/g extract, flavonoids 41.61 mg QE/g extract and had antioxidant activity (IC50=275.06 ppm). Recommended for in vivo or in vitro assay for certain diseases using these extracts.Further research is needed with the use of other solvent to see optimall in the screening of active compounds.

Physicochemical and Sensory Characteristics of Rose-Spices Drink with Red Ginger, Lemongrass, and Cinnamon Extract as Functional Beverage Elfi Anis Saati; Edwin Eka Haprinata; Sri Winarsih; Mochammad Wachid; Vritta Amroini Wahyudi
Food Science and Technology Journal (Foodscitech) Vol 4 No 1 (2021)
Publisher : Universitas Dr Soetomo

Rose flower has varieties of compounds, one of that is antioxidants, but it's not been widely used in the food sector. The processing that can be applied to roses is to make them for functional drinks by adding variations of the three spice filtrate, which are expected to increase the quality, characteristics and increase the antioxidant activity of the product. This study aims to determine the interaction between the type of spice filtrate and the concentration of the spice filtrate to the quality of the Rose-Spices Drink. Randomized block design (RBD) with 2 replications. The best treatment for Rose-Spices Drink was P4K1 (Spice Combination: 5%) with antioxidant activity 89.67%, brightness level (L) 32.7, redness level (a+) 2.7, yellowness level (b+) 4.1, pH 4.053, total dissolved solids (TDS) 11.7 °Brix, total anthocyanin 0,20 mg/L, taste 3.60 (quite like ), flavor 3.50 (quite like) and preference 3.23 (quite like).

Relative Mobility (Rf) Analysis of Albumin Isolates from Snakehead Fish (Ophiocephalus striatus) Extracted at Different Temperatures and Times Matheus Nugroho; Sugiono Sugiono; Fadjar Kurnia Hartati
Food Science and Technology Journal (Foodscitech) Vol 4 No 1 (2021)
Publisher : Universitas Dr Soetomo

Snakehead fish was a fish that has a high albumin content. Snakehead fish was used in the health sector known as medicinal freshwater fish, to accelerate the process of healing wounds after surgery and childbirth. The purpose of this study was to analyze the relative mobility (Rf) of the snakehead fish (Ophiocephalus striatus) albumin isolates by steaming at different temperatures and times. The research method for analyze the relative mobility (Rf) of the snakehead fish (Ophiocephalus striatus) albumin isolates by using gel filtration column chromatography, was detected by the SDS-PAGE electrophoresis method. Electrophoresis was carried out at a constant voltage of 125 v/ slab. Gel staining was carried out with Commasie Brilliant Blue R-250 in methanol-acetic acid-water. A standard protein mixture consisting of: myosin (200.0 kDa), β-galactosidase (116.3 kDa), phosphorylase B (97.4 kDa), bovine serum albumin (66, 2 kDa), ovalbumin (45.0 kDa), carbonic anhydrose (31.0 kDa), trypsin inhibitor (21.5 kDa), lysozyme (14.4 kDa) and aprotinim (6.5 kDa). The data analysis of this research was descriptive analysis to see the photos of the electrophoresis results. Meanwhile, for the analysis, the measurement of albumin isolation by gel filtration Sephadex G-75 was carried out with a divided plot design. The results showed that SDS-PAGE electrophoresis with the most complex amount of protein was albumin isolate, the effect of the steaming temperature was 40 oC for 30 minutes, located in 5 ml of the 1st fraction, 5 ml of the 2nd fraction and 5 ml of the 3rd fraction, with values of relative mobility (Rf) 0.0833 to 0.6944.

Different hydrocolloid types and concentrations effects towards non-gluten sponge cake's chemical quality and organoleptic Ayu Lestari Doloksaribu; Fadjar Kurnia Hartati
Food Science and Technology Journal (Foodscitech) Vol 4 No 1 (2021)
Publisher : Universitas Dr Soetomo

The number of people with autism and celiac disease keeps increasing. One of the efforts to assist the healing process naturally is through food consumption that is healthy, safe, and not carelessly, such as providing non-gluten food. The most favoured non-gluten product alternatives are the sponge cake. To produce a soft and elastic non-gluten sponge cake, then hydrocolloid is required. On the other side, the types and amounts of hydrocolloid are varied, depending on the product's types and ingredients. This research aims to determine the correct type and concentration of hydrocolloid (xanthan gum and guar gum) towards chemical quality and organoleptic of the non-gluten sponge cake from the best cowpea. This research would also help fulfil food availability and diversity for the increasing number of people with autism and celiac disease, reduce the consumption of wheat flour as the gluten source that is now still imported, and utilise and increase consumption of cowpea locally-sourced food. This research employs Randomised Block Design method consists of two factors: hydrocolloid type factor, which consists of two levels (xanthan gum and guar gum) and hydrocolloid concentration type factor, which consists of three levels (1 gr, 2 gr, and 3 gr). The chemical test parameters involve protein, water, and ash content. The organoleptic test parameters involve colour, aroma, flavour, and texture. This research resulted in the best treatment of the cowpea sponge cake is at the usage of xanthan gum type on the 2 grams concentration (HIK2) with the highest Result Value of 0.78, with research criteria scores as follows: flavour = 5.7 (like); texture = 5.6 (like); water content = 9.535%; protein content = 4.354%; colour = 5.4 (rather like); and ash content = 1.622%.

Sifat Fisika Kimia dan Organoleptik Cookies Beras Hitam (Oryza sativa L. indica) Sih Pratiwi, Eko Kanti
Food Science and Technology Journal (Foodscitech) Vol. 1 No. 1 (2018)
Publisher : Universitas Dr Soetomo

Black rice (Oryza sativa L.indica) is a dark black rice and useful as a super food good for health, because of its high fiber content. Utilization of black rice as a d product is still very minimal. The objective of this research is to know the physical and chemical properties of cookies with fortification of black rice flour. This research method used non factorial RAL (non factorial design) with five level: control (F0), fortification of black rice flour (F1, F2, F3 and F4 = 2,5%, 5%, 7,5% and 10 %). The results of physical analysis of color and brightness indicate that the the percentage of fortification of black rice flour, the brightness decreases, while the texture (hardness) is higher. The result of chemical consisting of water, ash, fat, protein and fiber content, in e with SNI quality of cookies, while for sensory (organoleptic) color test is getting brown (F4), harder texture (F4) with flavors acceptable to panelists rather sweet, somewhat savory typical cookies

Pengaruh Umur Simpan Brownies Kukus Ampas Tahu Pada Suhu Ruang dan Suhu Dingin Sofnitati, Sofnitati
Food Science and Technology Journal (Foodscitech) Vol. 1 No. 1 (2018)
Publisher : Universitas Dr Soetomo

Steamed oilcake tofu brownies is belong to a semi-wet type of food that easy breaks down and has a relatively short shelf life. Determination of shelf life is the determination of expired date by shelf life a series of products under normal conditions everyday and made observations of the quality decrease to reach the quality level of expiration, so that the food can not be consumed anymore. shelf life was done by looking at the quality degradation reaction using storage with different temperature between normal temperature (room temperature) and cold temperature (refrigerator) and simulate the data obtained. The using method in this research is descriptive qualitative by observing the influence of steamed oilcake tofu at room temperature and cold temperature for 12 days, to the quality of volume, shape, color, aroma, texture and taste. The result of the research showed that the age of steamed oilcake tofu at room temperature showed significant change on the 4th days and 12th days, to the color, aroma and taste quality, while the quality of volume and shape did not change. Shelf life steamed oilcake tofu knows at cold temperatures there is significant changes on day 10th and day 12th on taste and texture quality, while on quality of volume, shape and color there is no change. From the results of this study it can be concluded that the age of the steamed oilcake tofu brownies at room temperature is 3 days, and shelf life of steamed oilcake tofu brownies at cold temperatures is 9 days.Keywords: Shelf Life; Steamed Tofu Brownies; Temperature

Analisis Aktivitas Antioksidan Pada Beras Hitam dan Tepung Beras Hitam (Oryza sativa L.indica) Muktisari, Ratri Diah; Hartati, Fadjar Kurnia
Food Science and Technology Journal (Foodscitech) Vol. 1 No. 1 (2018)
Publisher : Universitas Dr Soetomo

Black rice and black rice flour is a food product which is very beneficial for the body, because it contains antioxidants. Antioxidant contained in black rice and black rice flour analyzed by examining the antioxidant activity. The purpose of this study is to determine changes to the antioxidant activity of black rice and black rice flour. The research method is using experimental with 2 samples (black rice and black rice flour). In the Data analysis is using independent t test. The results indicate that there are the differences between the antioxidant activity of black rice and black rice flour. It can be concluded that the drying process in the manufacture of black rice flour lowered antioxidant activity in black riceÂ products.

Kandungan Boraks dan Formalin Pada Sempol Ayam Yang Beredar Di Sekolah Dasar Kecamatan Sukolilo Surabaya Hardinata, Taufan; Djauhari, Arlin Besari
Food Science and Technology Journal (Foodscitech) Vol. 1 No. 1 (2018)
Publisher : Universitas Dr Soetomo

Chicken Sempol is a snack food that lately selected by all of ages, especially by elementary school student because it easily found in elementary schools at Surabaya and affordable prices. Sempol is a snack that the ingredients and the processing such as meatballs but only the process and the servings is different because it stabbe with a stick like sate and served after fried dipped earlier in egg whisk.Sempol chicken circulating at Surabaya suspected contain dangerous Food Additives such as borax and formaldehyde so it should be tested. Research on sempol assay was be done on chicken sempol were sold in 23 elementary schools in Sukolilo district, Surabaya got 26 chicken sempol traders. The results showed that only one chicken sempol sold did not contain borax and formalin (4,348 %), while 25 chicken sempol from different traders in different elementary schools are also contained borax and formalin (95,652 %).Â Borax and formaldehyde were qualitatively assay, the assay of borax based on the color change of curcumin paper and the assay of formaldehyde is done by determining the KMnO4 solution to determine the pink disappearance of the KMnO4 solution.Â Keywords: borax; formalin; sempol chicken; Sukolilo

Pemanfaatan Kulit Pisang (Musa paradisiaca) Menjadi Donat Tinggi Kalsium Hartati, Fadjar Kurnia
Food Science and Technology Journal (Foodscitech) Vol. 1 No. 1 (2018)
Publisher : Universitas Dr Soetomo

Tujuan dari penelitian ini adalah: memanfaatkan limbah kulit pisang menjadi salah satu produk pangan tinggi kalsium yaitu berupa donat dan mengetahui formulasi tepung terigu : kulit pisang yang tepat sehingga menghasilkan donat tinggi kalsium yang memiliki sifat organoleptik (rasa, keempukan dan warna) disukai .Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan 1 faktor yaitu formulasi tepung terigu : kulit pisang dimana masing-masing perlakuan diulang 9 kali. Perlakuannya adalah : K1 =Â 30%Â :Â 30%; K2 =Â 40%Â :Â 20% dan K3 = 50%Â :Â 10%.Hasil penelitian menunjukkan bahwa perlakuan terbaik yaitu pada perlakuan formulasi tepung terigu : kulit pisang = 40% : 20%Â yang menghasilkan nilai produk tertinggi yaitu sebesar 0,839. Adapun kandungan gizi donat kulit pisang (tiap 100 g bahan) yang paling disukai yaitu protein 18,56 g, karbohidrat 86,19 g dan kalsium 945,3 mg. Berdasarkan hal tersebut di atas maka donat dengan penambahan kulit pisang mempunyai banyak manfaat, diantaranya untuk menekan biaya produksi, mengurangi limbah kulit pisang, meningkatkan intake kalsium, dan yang pasti menyehatkan tubuh. Kandungan gizi yang terdapat dalam donat dengan menggunakan campuran kulit pisang lebih tinggi dibandingkan dengan donat pada umumnya,.Â Kata kunci : kulit pisang, donat, kalsiumTujuan dari penelitian ini adalah: memanfaatkan limbah kulit pisang menjadi salah satu produk pangan tinggi kalsium yaitu berupa donat dan mengetahui formulasi tepung terigu : kulit pisang yang tepat sehingga menghasilkan donat tinggi kalsium yang memiliki sifat organoleptik (rasa, keempukan dan warna) disukai .Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) dengan 1 faktor yaitu formulasi tepung terigu : kulit pisang dimana masing-masing perlakuan diulang 9 kali. Perlakuannya adalah : K1 =Â 30%Â :Â 30%; K2 =Â 40%Â :Â 20% dan K3 = 50%Â :Â 10%.Hasil penelitian menunjukkan bahwa perlakuan terbaik yaitu pada perlakuan formulasi tepung terigu : kulit pisang = 40% : 20%Â yang menghasilkan nilai produk tertinggi yaitu sebesar 0,839. Adapun kandungan gizi donat kulit pisang (tiap 100 g bahan) yang paling disukai yaitu protein 18,56 g, karbohidrat 86,19 g dan kalsium 945,3 mg. Berdasarkan hal tersebut di atas maka donat dengan penambahan kulit pisang mempunyai banyak manfaat, diantaranya untuk menekan biaya produksi, mengurangi limbah kulit pisang, meningkatkan intake kalsium, dan yang pasti menyehatkan tubuh. Kandungan gizi yang terdapat dalam donat dengan menggunakan campuran kulit pisang lebih tinggi dibandingkan dengan donat pada umumnya,.Â Kata kunci : kulit pisang, donat, kalsium

Page 7 of 15 | Total Record : 143

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Contact Name
Fadjar Kurnia Hartati

Contact Email
fadjar.kurnia@unitomo.ac.id

Phone
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Journal Mail Official
foodtech018@gmail.com

Editorial Address
-

Location
Kota surabaya,

Jawa timur

INDONESIA