Jelly drink has the consistency of a gel that is weak , so that the children preferred. Coconut sugar is also known as a natural sweetener that is safe for the body , so it is possible to use as a sweetener jelly drink. The research aims to 1) study the effect of sugar on the physicochemical and sensory properties jelly drink, 2) the effect of glucose concentration on the physicochemical and sensory properties of jelly drink, and 3) determine the level of preference for products jelly drink. The research methode that used was experiment completely randomized block design with two factors and 3 replications. The first factor is the type of sugar (J) consists of three levels, namely: J1 = Liquid Coconut Sugar, J2 = Soliduified Coconut Sugar, and J3 = Cane Sugar. The second factor is the concentration of sugar (K) which consists of three levels ie: K1 = 14%, K2 = 15%, and K3 = 16%. The results showed that the treatment effect on the type of viscosity, color, sweetness, sugar distinctive flavour, and texture of jelly drink. The sugar concentration affects the syneresis and viscosity jelly drink.. the combination treatment of type and concentration of sugar does not give effect to the preference level of the product jelly drink.
Penelitian bertujuan untuk mengetahui jumlah tepung suweg dan stabilized rice bran (SRB) yang harus ditambahkan dalam formula breakfast meal flakes (BMF) yang optimal serta mengetahui karakter fisik, kimia, dan organoleptik BMF yang dihasilkan. Penelitian menggunakan metode respon permukaan dengan model Central Composit Design. Faktor yang diteliti yaitu proporsi tepung suweg dan SRB. Pembuatan BMF dilakukan dengan cara pencampuran tepung suweg (proporsi 70-85%) dan SRB (proporsi 15-30%) dengan bahan lainnya yaitu tapioka 10%, susu skim 15%, garam 1,5 %, margarin 5%, baking powder 3 %, vanili 1% (seluruh persentase terhadap berat tepung suweg dan SRB) dan air 100 ml, hingga membentuk adonan, kemudian dilakukan steam blanching, dicetak dan dipanggang. Penelitian ini berhasil untuk menentukan formula optimum untuk pembuatan BMF yaitu sebesar 22,5% untuk SRB dan 77,5% untuk tepung suweg. Produk BMF dari formula terbaik ini mempunyai hardness sebesar 29,44 N, dan serat pangan, antioksidan, protein, kadar lemak, kadar air, kadar abu dan karbohidrat masing-masing sebesar 15,93, 75,10, 11,7, 9,51, 2,4, 2,16, dan 64,21 %. Warna produk akhir adalah coklat keabuan dengan tekstur yang renyah serta aroma yang netral. Rasa pada produk akhir adalah dinilai tidak pahit dengan nilai kesukaan adalah disukai panelis. Kesimpulannya, formula optimal BMF dari tepung suweg dan SRB berhasil ditentukan dengan menggunakan metode respon permukaan.Formulation of Breakfast Meal Flakes Based on Suweg Flours and Stabilized Rice Bran using Response Surface MethodologyAbstractThe purpose of this research was to study the amount of suweg flour and stabilized rice bran (SRB) which must be added in the optimal breakfast meal flakes (BMF) formula and to study the physical, chemical, and organoleptic characteristics of BMF was produced. The study used Response Surface Methodology with the Central Composite Design model examined the proportion of suweg flour and SRB. Making BMF is done by mixing suweg flour (70-85%) and SB flour (15-30%) with other ingredients namely 10% tapioca starch, 15% skim milk, 1.5% salt, 5% margarine, 3% baking powder, 1% vanilla (all percentages of the weight of suweg flour and SRB), and 100 ml of water, to form a mixture, then steam blanching, molded and baked. The best formula for BMF is the proportion of 22.5 % of SRB and 77.5% of flour suweg. Breakfast meal flakes have a hardness value of 29.44 N, dietary fiber 15.93%, antioxidant of 75.97%, protein content of 11.7%, fat of 9.51%, moisture of 2.4%, ash content of 2.16%, the carbohydrate content of 64.21%, color of 2.3 (grayish brown), texture of 3.3 (crispy), flavor 2.5 (neutral), taste of 2.9 (not bitter), and preference 2.9 (likes). As conclusion, surface response method successfully determined the optimal BMF formula from flour suweg and SRB.
Coconut shell extract contains phytochemical compounds tannins, saponins and steroids which are thought to act as antimicrobial compounds. This makes coconut shell extract has great potential as a natural preservative, one of which is the natural preservative coconut sap. This study aims to know the effect of coconut shell type, extraction time, extraction temperature and the combination of the three treatments on the antimicrobial activity and phytochemical extracts produced. This study using a Randomized Block Design (RBD). The factors tested were coconut shell type consisting of: fresh old coconut shell; dry old coconut shell; fresh young coconut shell; dry young coconut shell; length of extraction time consisting of: 3 and 5 hours’ extraction time, and extraction temperature consisting of: 28°C and 70°C. The variables observed in this study include microbiological and phytochemical variables. The results showed that all type of coconut shell extract contains phytochemical compounds such as tannin, saponins, and some samples contain steroid compounds and had the ability of antimicrobial activity, especially in the bacterium A.aceti. The combination of a dry old shell with an extraction time of 3 hours and extraction temperature of 28°C has the highest antimicrobial activity against A.aceti bacteria with inhibition zone diameter of 13.25 mm, positive containing phytochemical compounds tannins, saponins and steroids and contains total phenol levels of 18.67 mg/100g.
The purpose of this study is design and create a product counter control prototype control system based on a programmable logic controller. Using the ladder diagram programming language with cx-programmer 9.5 software that can be applied as commands in the PLC and produce an output that is used to control and drive the product counter conveyor prototype. This research begins with literature review, design and follows by assembly conveyor, DC motor, power supply, controller circuit, proximity sensor, digital counter and PLC. The measurement result is the speed of processing time of the parcel beam 1.51 second and 2.96 second removal of the sensor, sensor detection 7 cm, the accuracy of calculation of the number of products can calculate precisely and well. The test results show that the design of the tool can work well in the process of calculating the number of products.Keyword : Control System, conveyor, proximity sensor, DC motor
Tofu is a perishable food product, thus requiring a safe natural preservative. Liquid smoke from rice husk can be used as a tofu preservative, but its use in liquid form is less practical. Liquid smoke encapsulation process is a way to resolve the issue. The research objectives were to study the antibacterial activity of liquid smoke from rice husks and their encapsulated products, the effect of the concentration of liquid smoke encapsulation products on the shelf life of white tofu during storage, and the optimal concentration of liquid smoke encapsulation products that were able to maintain the quality of white tofu during storage. This type of research was experimental using a Split Plot Design, with the main plot was the concentration of encapsulated products, while the sub-plot was the storage time. Factors studied were the storage time (0, 2, 4 and 6 days) and encapsulation product concentrations (0, 0.5, 1, 1.5 and 2%). There were 20 combinations of treatment, repeated two times in order to get 40 units of trial. The results showed that the liquid smoke of rice husk had total phenol of 1,624.62 mg GAE/g, also had antibacterial activity against Escherichia coli ATCC and Staphylococcus aureus ATCC. Encapsulation product of rice husk liquid smoke had total phenol of 3,125 mg GAE/g and antibacterial activity against Escherichia coli ATCC and Staphylococcus aureus ATCC. The concentration of the encapsulated product affected the value of water content, protein content and the total plate count (TPC) during storage. The concentration of 2% encapsulated product produced the lowest changes during storage. The concentration of 1% encapsulated product resulted in tofu quality that was still organoleptically feasible until the second day of storage. Keywords: encapsulation, liquid smoke, white tofu
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