Pembuatan Briket Arang Daun Kelapa Sawit (Elaeis Guineensis Jacq.) Dengan Perekat Pati Sagu (Metroxylon Sago Rott.)

Increasing need of energy and decreasing of fuel supply requires human to discover alternative energy resources. Consequently, there should be a research to discover a new renewable energy source such as palm leaves waste. Oil palm\u27s leaves (Elaeis guineensis Jacq.) are mostly the least used waste from oil palm plantation as an alternative energy resources. This research aims to discover the precise adhesive consentration rate in sago\u27s starch (Metroxylon sago Rott.) to make oil palm\u27s kernel, which are 97%:3%, 96%:4%, 95%:5%, 94%:6%, and 93%:7%. Based on analitycal result of oil palm\u27s leaves charcoal briquet research, the best quality briquet is the P1 composition which composed rate is 97%:3%, has 3,21% water content, 30,18% ashes content, 0,0022 g/s combustion rate, 20,73% evaporated substance rate, 54,46% carbon rate, and 5.114 cal/g heat value

Perbedaan Ukuran Partikel terhadap Kualitas Briket Arang Daun Pisang Kering

Dry banana leaves contain beneficial compounds lignin and cellulose which is quite high and has not been utilized optimally. Therefore, the study aims to take advantage of dry banana leaves as the main material for the manufacturing of charcoal briquettes and charcoal briquettes obtain formulations are of good quality. The study was conducted experimentally using Complete Random Design (CRD) with 6 treatments and 3 replications and continued with Duncan\u27s New Multiple Range Test (DNMRT) at level 5%. The treatmentsin the research including P0 (charcoal powder dry banana leaveswithout sieve), P1 (charcoal powder dry banana leaves20 mesh), P2 (charcoal powder dry banana leaves40 mesh), P3 (charcoal powder dry banana leaves60 mesh), P4 (charcoal powder dry banana leaves80 mesh), and P5 (charcoal powder dry banana leaves100 mesh). The result of analysis of variance showed that the particle size charcoal dry banana leaves significant effect on ash content, density, calorific value and fueled power. Selected treatment wasP3 (charcoal powder dry banana leaves 60 mesh) which has a water content 6.80%, ash content of 29.86%, a density of 0.38 g/cm3, 4646 calorific value cal/g, and fueled power 0.0016 g/sec

Variasi Suhu dan Waktu Ekstraksi terhadap Kualitas Pektin dari Kulit Pisang Tanduk

This research aimed to get the best extraction of time and temperature on the quality of pectin from banana peels horn. This research used a Completely Randomized Design (CRD) with two factors treatments and three replications. First factor the extraction of temperature is T1 (80°C) and T2 (90°C). Second factor the extraction of time is W1 (60 minutes), W2 (70 minutes) and W3 (80 minutes). Parameters measured were yield pectin, moisture content, ash content, methoxyl content, time of jelly, organoleptic assessment descriptively of pectin colour and pectin jelly. The value of observation were analyzed using Analysis of Varians (ANOVA) followed by Duncan\u27s New Multiple Range Test (DNMRT) on 5% level. The results showed that the interaction between temperature and extraction of time was significants (P<0.05) the water content, methoxyl content and the time of the formation of jelly. Extraction of temperature significants different (P<0.05) on yield, moisture content, ash content, methoxyl, and time of jelly. Extraction of time was significants (P <0.05), the yield of pectin, moisture content, ash content, methoxyl content, and time of jelly. Based on organoleptic assessment descriptive (colour) of the pectin and jelly is brown and be dark brown with the increase in the temperature and the extraction of time. The best treatment of pectin is extraction of temperature (90°C) and the extraction of time (80 minutes)

Variasi Rasio Bahan Penstabil Cmc (Carboxy Methyl Cellulose) Dan Gum Arab Terhadap Mutu Velva Alpukat (Parsea Americana Mill.)

The purpose of this research to obtain the best concentration ratio of stabilizer CMC and gum arabic in making of avocado velva. This research used Completely Randomized Design (CRD) with five treatments and three replications followed by DNMRT test at 5% level. The treatments in this research was CG1(stabilizer CMC:arabic gum=0:1), CG2 (stabilizer CMC:arabic gum= 1:2), CG3 (stabilizer CMC:arabic gum= 1:1), CG4 (stabilizer CMC:arabic gum= 2:1) dan CG5 (stabilizer CMC:arabic gum=1:0). The result of analyis of variance showed that variations combination of stabilizer CMC and gum arabic has significantly affected the overrun, melting rate, total dissolved solid and sensory value on descriptive and hedonic attribute texture. Variations ratio of stabilizer CMC and gum arabic on descriptive and hedonic did not significantly affected attribute colour, flavour and taste of avocado velva. The best treatment in this research was CG4 (stabilizer CMC:arabic gum= 2:1) with overrun 20.30%, melting rate 24.19 minutes, total dissolved solid 32.12 °brix, yellow colour, avocado flavour, avocado taste and soft texture