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All Journal Jurnal Dedikasi Agrointek agriTECH Pro Food Omni-Akuatika Jurnal Agro Industri Perkebunan Jurnal Perikanan Universitas Gadjah Mada Canrea Journal: Food Technology, Nutritions, and Culinary Journal Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Bima Abdi: Jurnal Pengabdian Masyarakat Edible : Jedb Food Technology and Halal Science Journal JURNAL AGROINDUSTRI HALAL Makara Journal of Technology JAPI: Jurnal Akses Pengabdian Indonesia

Warkoyo .

Universitas Muhammadiyah Malang

Author-ID : 551544

Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Characterization of Edible Film from Starch of Taro (Colocasia esculenta (L.) Schott) with Addition of Chitosan on Dodol Substituted Seaweed (Eucheuma cottonii L.) Yuliarie Wulandari, Noor Harini Warkoyo
Food Technology and Halal Science Journal Vol. 1 No. 1 (2018): Juni
Publisher : Universitas Muhammadiyah Malang

Abstract.Edible film is a thin layer to protect food which it can be consumed. One of the main components to make edible film is starch, which could be derived from taro tubers. Taro tubers contain high starch content about 70-80% which consists of 5.55% of amylose and 74.45% of amylopectin with yield reach to 28.7%. However, the weakness of starch-based edible film are low resistance to water and low barrier properties to water vapor. One of the recommended hydrophobic biopolymers to improve the film characteristics of starch as well having antimicrobial activity is chitosan. The objectives of this research are to know the interaction and influence of starch concentration from taro tuber and concentration of chitosan on physical and mechanical character of edible film, including thickness, density, transparency, tensile, elongation and water vapor transmission eate (WVTR). The best treatment from first objective will apply on dodol (food made by glutinous rice) substituted by seaweed to know the effect of its application on dodol shelf life (texture analysis, weight loss and microbiology). Therefore this research was conducted in 2 stages and 2 experimental design methods. The first stage was the process of making edible film using Randomized Block Design method and the second stage was the application of edible film using Random Design Complete method. The results of physical and mechanical analysis of edible film based on its effect on the storage of dodol showed that the best treatment was obtained of P3K3 treatment (6% of Taro starch: 3% of Chitosan), P3K1 (6% of Taro starch: 1% of Chitosan) and P3K2 (6% Taro starch: 2% of Chitosan). The application of 3 types of edible films based on the best treatment of dodol substitute of seaweed has significant effects on the value of weight loss, texture and total plate count during the storage period. Effectiveness of edible film in inhibiting damage to dodol was obtained of P3K3 treatment (6% of Taro starch: 3% of Chitosan) with WVTR value equal to 0.189 g / cm2 hour, 0.170 N / mm2 of tensile strength, 0.088% of elongation, 0.160 mm of thickness, 0.151 of density and 0.000 mm-1of transparency.

The study of watermelon rind (Citrullus lanatus) and pinenapple fruit (Ananas comosus L.) proportion with caragenan addition on fruit leather physicochemical characteristics Devi Dwi Siskawardani Rias Anggun Kartika, Warkoyo Khusnul Khotimah
Food Technology and Halal Science Journal Vol. 1 No. 1 (2018): Juni
Publisher : Universitas Muhammadiyah Malang

presentage of pectin is about 21.03% which suitable for food production such as fruit leather. Fruit leather is one of the snack food products from fruit pulp (puree) were dried in an oven or a dehydrator. Shortage of watermelon rind fruit leather is to produce flavor and color that is less interesting and has a less flexible texture. Therefore, in making fruit leather from watermelon rind is added substitution materials and stabilizers such as pineapple and carrageenan. This study aimed to determine the effect of the proportion of watermelon rind with pineapple and the addition of carrageenan concentration on the physicochemical and sensory characteristics of fruit leather. The study was conducted using a randomized complete block design (RCBD) factorial. The first factor with three levels, namely the proportion of watermelon rind and pineapple (90%:10%, 80%:20%, and 70%:30%). The second factor was carrageenan concentration (0,2%, 0,4%, and 0,6%). Treatment of the proportion of watermelon rind and pineapple had significant effect on water content, ash, vitamin C, hardness, sugar, lightness (L), yellowish (b+). Treatment of carrageenan concentration has significant effect on water content, ash, vitamin C, lightness (L). Fruit leather of watermelon rind that has best physicochemical characteristics was A1K1 treatment is the proportion of albedo rind and pineapple (90%: 10%) and carrageenan concentration 0.2%. organoleptic taste 3.10, aroma 2.70, color 3.00, and favor 3.03.

Kajian Konsentrasi Pati Singkong Karet (Manihot glaziovii) dan Penambahan Fraksi Oleat dan Asam Oleat pada Karakteristik Fisik dan Barrier Edible Film Anik Wahyuningsih; Damat Damat; Warkoyo Warkoyo
Food Technology and Halal Science Journal Vol. 2 No. 1 (2019): Januari
Publisher : Universitas Muhammadiyah Malang

The edible film can be an alternative packing of safe and biodegradable products. The utilization of Ceara rubber starch (Manihot glaviovii) as an edible film making material with the addition of oleic fraction and oleic acid is expected to improve the characteristic of starch-based edible film. The purpose of this study are: (i) to know the existence of interaction between the treatment of Ceara starch concentration and addition of oleic fraction and oleic acid on physical characteristics and barrier of edible film, (ii) to know the effect of treatment of Ceara starch concentration on physical characteristics and barrier of edible film, and (iii) to know the effect of oleic fraction and oleic acid addition on physical characteristics and barrier of edible film. This research uses Randomized Completely Block Design (RCBD) factorial composed of two factors. The first factor was the difference in the concentration of the ceara rubber starch consisting of 3 levels (3%, 4%, and 5%) and the second factor was the addition of lipids (0% lipid, 15% RBDPO, and 15% oleic acid (w/w polymer)) with 3 repetitions. Parameters measured were thickness, transparency, water vapor transmission rate (WVTR), elasticity, tensile strength, solubility, and microstructure of the edible film. The results showed that there was an interaction between the concentration of ceara rubber starch with the lipid addition of in WVTR, elasticity, and tensile strength parameter of edible film. The concentration of ceara rubber starch has a significant effect on the parameters of thickness, transparency, and solubility. The addition of lipids significantly affected the parameters of thickness, transparency, and WVTR. The best treatment was obtained P2A3 (4% ceara rubber starch + 15% oleic acid) with an average thickness of 0,133 mm, transparency 0,818 a/mm, 17,246 g/m2.day water vapor transmission rate, 48,781% elasticity, tensile strength 1,458 MPa, and 44.035% solubility.

Karakteristik Fisik, Mekanik Dan Zona Hambat Edible Film Dari Pati singkong Karet (Manihot glaziovii) Dengan Penambahan Gliserol Dan Ekstrak Jahe Merah (Zingiber officinale Var Rubrum) Sebagai Penghambat Bakteri Salmonella Lady Agitasi Amrillah; Warkoyo Warkoyo; Desiana Nuriza Putri
Food Technology and Halal Science Journal Vol. 2 No. 1 (2019): Januari
Publisher : Universitas Muhammadiyah Malang

The edible film is one of the innovations used to overcome the food packaging problem. Components of edible films are hydrocolloids, lipids, and composites. Glycerol belongs to the hydrocolloid group which serves to maintain the solidity of the film sheet. The edible active film allegedly can inhibit physical, chemicals, and microbiology problems in the packaging which will affect the decline of food quality during storage. With the active compounds contained in red ginger it is expected to inhibit the growth of Salmonella bacteria. The purpose of this study was to determine the effect of the addition of different concentrations of glycerol and red ginger extract on the physical, mechanical, and inhibitory zones in the resulting edible film produced. This research used a nested design with 2 factors. The first factor was the addition of 20% glycerol concentration; 25%; 30% while the second factor is the addition of 0% red ginger extract; 0.5%; 1%; 1.5%. The treatments were 12 treatments with 3 replications. The parameters of this study include thickness, tensile strength, elasticity, WVTR, transparency, moisture content, solubility, density, and edible inhibition zone against Salmonella bacteria. The results showed that edible active red ginger film with the addition of glycerol had a significant effect on thickness, transparency, tensile strength and inhibition zone. On the addition of red ginger extract, 1.5% can inhibit the growth of Salmonella bacteria up to 34.17 mm.

Pemanfaatan Limbah Padat Sari Apel sebagai Bahan Baku Cuka Apel Menggunakan Metode Backslop Alvianty Novitasari; Warkoyo Warkoyo; Sri Winarsih
Food Technology and Halal Science Journal Vol. 2 No. 1 (2019): Januari
Publisher : Universitas Muhammadiyah Malang

Solid wasted of apple cider containing a lot of compounds such as carbohydrates, glucose, malic acid, and flavonoids. The purpose of this research is to utilize the solid wasted of apple cider as the raw material of apple vinegar. The fermentation process of making apple vinegar in this research using the backstop method. This research consists of 2 steps of the fermentation process. The first step of fermentation using yeast to transform sugar into alcohol. Second step fermentation is a continuance of first step fermentation with the addition of apple vinegar backstop culture which contain Acetobacter aceti with density 4 x 107cfu / ml to transform alcohol to acetic acid. This research uses simple and factorial Randomized Block Design (RBD). Fermentation phase I using simple RBD with the proportion of apple raw material (solid wasted of apple cider: apple) 100% : 0%; 75%: 25%; 50%: 50%; 25%: 75% as factor I. Fermentation phase II using factorial RBD with the combination of factor I and the addition of apple vinegar backstop with concentration 5%, 10%, and 15% as factor II. The results showed that during the first step fermentation process the raw material proportion of apple (solid wasted of apple cider: apple) affected total soluble solids, pH value, and alcohol content. Fermentation phase II showed an interaction between the proportion of the raw material of apple (apple cider waste: apple) and the addition of backstop apple vinegar concentration to total dissolved solids, alcohol content, acetic acid, except pH value. The best results showed treatment with apple material proportion (25% solid wasted of apple cider: 75% apple) and addition of apple vinegar backstop concentration 15 % produce 4.6 g / 100ml acetic acid, 4% soluble solids total, pH value of 3.4 and alcohol residue of 0% (v/v), with colorful organoleptic results quite appealing, the scent is sufficient, and preferences are favored by the panelists.

Study of Physical Characteristic, Water Vapor Transmission Rate and Inhibition Zones of Edible Films from Aloe vera (Aloe barbadensis) Incorporated with Yellow Sweet Potato Starch and Glycerol Nur Rahmiatiningrum; Sukardi Sukardi; Warkoyo Warkoyo
Food Technology and Halal Science Journal Vol. 2 No. 2 (2019): Juni
Publisher : Universitas Muhammadiyah Malang

Glucomannan was the main polysaccharide of Aloe vera gel. It was dissolved in water, formed a gel, and transparent as a film. Aloe vera gel was reported antimicrobial and antioxidant activity such as saponin and anthraquinone that was potential for the increased value of an edible film. However, Aloe vera gel form weak film caused glucomannan to have high water absorption. In this research, Aloe vera gel was used as a basis for the polymer film. Yellow sweet potato starch added for the strength matrix component used amylose. This starch expected to give colors from carotenoids. Glycerol also added for the flexibility of an edible film. Randomized Complete Block Design Factorial (RCBD) was applied. The first factor was concentration of yellow sweet potato starch (1%, 2%, 3%) and the second one was glycerol (0,1%, 0,25%, and 0,5%). The parameters tested were color, thickness, transparency, tensile strength, elongation, solubility, water vapor transmission rate, and inhibition zones against E. coli, and S. aureus, fungi A. niger and C. Albicans. The results showed that the addition of yellow sweet potato starch and glycerol with different concentration had a significant effect on color, thickness, transparency, tensile strength, elongation, and solubility. However, an edible film on this research has not to show bacteria and fungi inhibition zone of edible film. P2G1 is the best treatment (yellow sweet potato starch 2% and glycerol 0,1%) produced an edible film with a thickness of 0.12mm, elongation 50.85%, tensile strength 0.55 MPa, solubility 41.03%, transparency 2.13%, vapor transmission rate 3,40 g/m2/24hours, L, a+, b+ score in sequence 41.87, 0.2, and 4.1.

The Effect of Aloe vera and Glycerol Addition on Edible Film of Lesser Yam Starch (Dioscorea esculenta L. Burkill) Devi Dwi Siskawardani; Warkoyo Warkoyo; Anggit Ayu Pradana Siwi
Food Technology and Halal Science Journal Vol. 3 No. 1 (2020): Januari
Publisher : Universitas Muhammadiyah Malang

Edible films are thin layers made from hydrocolloids, lipids, and their combinations, functioning as a barrier to mass transfer. The hydrocolloid source that commonly used for edible film is starch. Lesser yam has the potential to be developed into food packaging products. It has a high starch yield (21.4%). The starch properties, which usually obstruct the edible film production are not resistant to high temperature, it produces a starch suspension with viscosity and ability to form a gel is not uniform, cannot stand in acidic conditions, does not resist stirring, limited solubility in water, and starch gel is easy to syneresis and brittle. This study aimed to investigate the effect of glycerol and Aloe veraconcentrations on the physical and mechanical edible film. Randomized complete block design (RCBD) factorial with two factors was adopted. The first factor was Aloe vera concentration (0, 1%, 0.2% and 0.3% w/v), and the second factor wasglycerol concentration (17.5, 22.5 and 27.5% v/w). The parameters tested included thickness, tensile strength, elongation, solubility, transparency, and water vapor transmission rate (WVTR). The results showed an interaction between the addition of glycerol and Aloe vera to thickness, tensile strength, elongation, solubility, transparency, and WVTR. The best characteristics of edible film were produced by the addition of glycerol 17.5% and Aloe vera 0.1% with thickness (0.08 mm), transparency (1.72 mm-1), tensile strength (0.156 MPa), elongation (17.25%), solubility (53.89%), and WVTR (4.09 g m-2 24 h-1).

Kajian Karakteristik Fisik dan Mekanik Edible Film Berbasis Pati Umbi Suweg (Amorphophallus paeoniifolius) dengan Variasi Konsentrasi Lilin Lebah Evi Lusiana Dwi Safitri; Warkoyo Warkoyo; Rista Anggriani
Food Technology and Halal Science Journal Vol. 3 No. 1 (2020): Januari
Publisher : Universitas Muhammadiyah Malang

Suweg tuber contains very high starch so that it can be used as one of the ingredients for the edible film. The use of a single ingredient from the starch group has a disadvantage because it has a weak and rigid, so it needs to be added ingredients to improve the nature of the edible film, namely by adding beeswax. The addition of beeswax is expected to improve the physical and mechanical properties of the edible film because its hydrophobic nature is a barrier to the loss of steam from products packed by the edible film. This research used a factorial randomized block design using two factors: suweg tuber starch concentration (3%.4%, and 5%) and beeswax concentration (1%.2%, and 3%). Parameters of research included analysis of raw materials in the form of water content, starch content and amylose starch content of suweg tubers whileanalysis edible film included the thickness, transparency, tensile strength, elongation, solubility, water vapor transmission rate and surface structure. The results showed that there was a very real interaction between the addition of suweg tuber and beeswax starch to thickness, elongation, tensile strength, and water vapor transmission rate and there was a real interaction with the transparency and solubility of edible film. The best treatment with near-standard results is edible film with suweg tuber starch concentration 3% (b/ v) and beeswax concentration 1% (b/ v) The surface structure of edible film on starch addition 3% (b/ v) results in a structure that more flat and soft, while the addition of beeswax 1% (b/ v) results in smaller pores.

Uji Potensi Cracker dengan Tepung Kulit Bawang Merah (Allium ascalonicum) sebagai Pangan Fungsional berAntioksidan dan Antihiperkolesterolemik Rista Anggriani; Rizki Khoirun Nisa; Susi Oxyvia Rosenansi; Marcya Hulwatul Purtanti; Warkoyo Warkoyo
Food Technology and Halal Science Journal Vol. 3 No. 2 (2020): Juni
Publisher : Universitas Muhammadiyah Malang

Diet is one of the causes of obesity and obesity, for example by consuming foods with high cholesterol levels such as fast food or fried foods, so it is necessary to find alternative non-fried processed products that have functional properties. Cracker as a non-fried processed product is fortified with shallot skin flour which has antioxidant activity. This research purpose is to determine the effect of adding shallot skin flour (3, 5, 10%) to the cracker against total cholesterol reduction after 7 days of consumption. This research used laboratory experimental methods with pre post test design with control group. Each group consisted of 5 Wistar rats (2 control groups and 4 treatment groups) so total Wistar rats used were 30 rats. In addition, antioxidant activity was also tested. The results indicated that cracker in the P3 formula (10% fortification of shallot skin flour) had high antioxidant activity of 68.90% and was able to decrease cholesterol with the highest precentage reduction of 10% after 7 days of consumption. This cracker can be categorized as a functional food which has high antioxidants and antihypercholesterolemic activity.

Karakterisasi Sifat Fisikokimia Pektin Kulit Jeruk Keprok Batu 55 (Citrus reticulata B), Jeruk Siam (Citrus nobilis var. microcarpa), Jeruk Manis Pacitan (Citrus sinensis L, Jeruk Nipis (Citrus aurantifolia swigle), dan Jeruk Lemon (Citrus limon L) yang Tumbuh di Kota Batu Anis Febrianti Rahmanda K.W; Sukardi Sukardi; Warkoyo Warkoyo
Food Technology and Halal Science Journal Vol. 4 No. 2 (2021): Juni
Publisher : Universitas Muhammadiyah Malang

Abstract. Utilization of orange peel waste in Batu City needs to be done to increase the selling power of consumers by extracting it as pectin. Pectin can be obtained using an extraction process. The stage of pectin extraction can affect the quality and quantity of the product. The extraction process will separate the pectin from the fruit tissue. This research was conducted with the production of orange peel flour as a material preparation process. The oranges used in this study were Batu 55 mandarin oranges (Citrus reticulata B), siam oranges (Citrus nobilis var. microcarpa), pacitan sweet oranges (Citrus sinensis L), lime (Citrus aurantifolia swigle), and lemons (Citrus limon L) which grows in the city of Batu. The next step was extraction using hydrochloric acid which was carried out using a nonfactorial randomized block design. The parameters observed were pectin yield, equivalent weight, methoxyl content, galacturonic acid content, esterification degree, moisture content, ash content, viscosity, colour intensity, and gel strength. The results showed that citrus peel varieties significantly affected yield, equivalent weight, galacturonic acid levels, degree of esterification, viscosity, and gel strength. Pectin with the best treatment based on the International Pectin Producers Association (IPPA) approach was shown in the Pacitan sweet orange peel variety with a galacturonic acid level of 99.15%, a viscosity of 88.06 cP, gel strength of 2.289 N, and an equivalent weight of 90.11 and resulted in yields. the most with a value of 24.20%. The pectin produced in this study is classified as high methoxyl pectin. Keywords: orange peel varieties, pectin, physicochemical properties Abstrak. Pemanfaatan limbah kulit jeruk di Kota Batu perlu dilakukan untuk meningkatkan daya jual konsumen dengan mengekstraknya sebagai pektin. Pektin dapat diperoleh dengan cara proses ekstraksi. Tahapan ekstraksi pektin dapat mempengaruhi kualitas dan kuantitas produk. Proses ekstraksi akan memisahkan pektin dari jaringan buah. Penelitian ini dilakukan dengan pembuatan tepung kulit jeruk sebagai proses preparasi bahan. Jeruk yang digunakan pada penelitian ini adalah jeruk keprok batu 55 (Citrus reticulata B), jeruk siam (Citrus nobilis var. microcarpa), jeruk manis pacitan (Citrus sinensis L), jeruk nipis (Citrus aurantifolia swigle), dan jeruk lemon (Citrus limon L) yang tumbuh di kota Batu. Tahap selanjutnya adalah ekstraksi dengan menggunakan asam klorida yang dilakukan menggunakan rancangan acak kelompok non faktorial. Parameter yang diamati adalah rendemen pektin, berat ekivalen, kadar metoksil, kadar asam galakturonat, derajat esterifikasi, kadar air, kadar abu, intensitas warna, viskositas dan kekuatan gel. Hasil penelitian menunjukkan bahwa varietas kulit jeruk berpengaruh nyata terhadap rendemen, berat ekivalen, kadar asam galakturonat, derajat esterifikasi, viskositas dan kekuatan gel. Pektin dengan perlakuan terbaik berdasarkan pendekatan International Pectin Producers Association (IPPA) ditunjukkan pada varietas kulit jeruk manis pacitan dengan nilai kadar asam galakturonat 99,15%, viskositas 88,06 cP, kekuatan gel 2,289 N, dan berat ekivalen 90,11 serta menghasilkan rendemen terbanyak dengan nilai 24,20%. Pektin yang dihasilkan dalam penelitian ini tergolong dalam high methoxyl pectin. Kata kunci : high methoxyl pectin, pektin, sifat fisikokimia,varietas kulit jeruk

Co-Authors Adi Sutanto Afifa Husna Agustini, Sulisttyo Mulyo Akbar, Arif Alvianty Novitasari Anggit Ayu Pradana Siwi Anik Wahyuningsih Anis Febrianti Rahmanda K.W Ardiana Desi Ayu Taufani Budi Rahardjo Cahya, Salsabilla Aulia Catherina Iskandar Putri Claudia Jasmine Damat, Damat David Hermawan Desiana Nuriza Putri Devi Dwi Siskawardani Didit Haryadi Djagal Wiseso Marseno Elfi Anis Saati Elfi Saati Elfi Saati, Elfi Ety Setyaningsih, SP Ety Setyaningsih, SP, Ety Setyaningsih, Evi Lusiana Dwi Safitri Faradiba Hijriani Harahap Fitri, Farah Maulida Friska Yuana Amelia Ganjar Adhywirawan Sutarjo Hajizah, Rihul Jannah Hanif Alamudin Manshur Husna, Afifa Imam Munandar, Muhammad Iman, Takbil Indra Alam Joko Nugroho Wahyu Karyadi Jumpen Onthong Khairunnisa, Nabilla Anggia Lady Agitasi Amrillah Maghfiroh, Naely Maharani, Putri Kirana Mandala Putra, M. Fadhil Marcya Hulwatul Purtanti Mariamah, Mariamah Masru’ah, Sallwa Asrofil Muhammad Muhammad Nanda Zuhriansyah Nengsi, Sulistia Noor Harini Nur Aini Dwi Cahyo Nur Rahmiatiningrum Nurfikrillah Suriansyah, M. Sultan Okta Pringga Pakpahan Pratama, Marchell Aditya Putri, Elita Mahda Gatra Rafle Bachtiar Rahmatullah, Sarif Ramadayanti, Arum Retno Muji Rahayu Rista Anggriani Rizki Khoirun Nisa Safitri, Deshinta Lintang Siti Mukaromatul Muslimah Siti Nur Elisa Sri Winarsih Sukardi Sukardi Susi Oxyvia Rosenansi Tricahyadi, Anggi Usman, Bilal Vritta Amroini Wahyudi Wahyudin Wahyudin Widyasari, Ayu Yahya Suhaimi Yuniar Sawitri Yuniar Sawitri, Yuniar Zahro, Nur Alfiatus

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