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Volume 7 Number 3 Year 2019

10 articles in this issue 

Ori Sativa Br.Sinaga,Rona J. Nainggolan,Terip Karo-Karo

Infused water was the drink made by soaking fruit in the cooled water for about a night in the refrigerator. This study was aimed to study of vitamin C content, sugar content, total microbes, pH value, total acid, total dissolved solids, and organoleptic ... see more

Pags. 150 - 156  

Ria Angelina Tobing,Linda Masniary Lubis,Terip Karo-Karo

The aim of this research was to determine the effect of calcium hydroxide and drying time on the quality characteristics of the endodermic layer of dragon fruit skin (Hylocereus polyrhizus). This research was using factorial Completely Randomized Design w... see more

Pags. 157 - 165  

Walia Niswi,Rona J. Nainggolan,Ridwansyah Ridwansyah

This research was conducted to determine the effect of ratio of red ginger juice with kecombrang juice and  of the amount palm sugar powder on the quality of instant fresh drink. This research was conducted using completely randomized design (CRD) wi... see more

Pags. 166 - 171  

Whitney Jovanka Utami,Ismed Suhaidi,Era Yusraini

The purpose of this research was to establish the right formulation of mayonnaise made from ratio of corn oil and palm oil and chili puree. This study was designed by using factorial complete randomized design with two factors; the ratio of corn oil : pal... see more

Pags. 172 - 179  

Joshua J.R. Harianja,Sentosa Ginting,Ismed Suhaidi

  This research was aimed to know the effect of cinnamon bark extract to increase coffee shelf life. This research was conducted by using a completely randomized design (RAL) with two factors, namely the concentration of cinnamon bark (M): 0% (contro... see more

Pags. 180 - 185  

Sofran Restu Enanda,Sumono Sumono,Achwil Putra Munir

Planting density for a given area of ??land will affect the productivity of rice plants. This study was aimed to determine the value of crop coefficient and rate of percolation and the production of Ciherang rice variety. Research was using non factorial ... see more

Pags. 186 - 195  

Sri Apulina,Sumono Sumono,Ainun Rohanah

Physical and chemical soil characteritics are important factors for the growth of rubber plant. This research was aimed to study physical and chemical soil characteritics of the rubber plant with vegetations of  harupat spikes, grass, taro and no veg... see more

Pags. 196 - 203  

Vanya Aulidya,Saipul Bahri Daulay,Taufik Rizaldi

Distillation is one of the ways to take up essential oil that contained in the plant, the example is ginger. Ginger has the high oil content with specific flavor. The postharvest processing’s purpose is to make the agricultural product have a higher econo... see more

Pags. 204 - 213  

Winda Savitri Ritonga,Saipul Bahri Daulay,Achwil Putra Munir

Oil is a food substance that is essential for maintaining the health of human body. Vegetable oils found in fruits, nuts, grains, root crops and vegetables. Extracting the oil using a screw press is usually done on grain oil content of more than 20%. This... see more

Pags. 214 - 219  

Zulhajji Zulhajji,Sumono Sumono,Adian Rindang

  Physical and chemical soil characteritics are important factors for the growth of oil palm. This research was aimed to study physical and chemical soil characteritics of the oil palm with vegetations of Pueraria javanica, grass, and no vegetation i... see more

Pags. 220 - 226