Potato protein liquor (PPL), a side stream from the potato starch industry, is normally used as fertilizer. However, with more than 100 g/L of sugars, 20 g/L of Kjeldahl nitrogen and Chemical Oxigen Demand (COD) of 300 g/L, it represents serious environmental challenges. The use of PPL for fungal cultivation is a promising solution to convert this waste into valuable products. In this study, PP...

In laboratory practice, there are many protein quantification methods, and all of them have their own advantages disadvantages. The most common widely used method for the analysis in food products, including fish, is Kjeldahl method. However, current standards measurement methods determination content fish products do not provide use devices that meet modern level technical development, also co...

A central composite experimental design was used to investigate the influence of environmental composting parameters (moisture, aeration, particle size and time) for legume trimming residues, used on soil restoration, on the properties of products obtained (organic matter, Kjeldahl-N, C/N ratio and nitrogen losses (N-losses)) in order to determine the best composting conditions. A second-order ...

This study aims to determine the content of antioxidants, carbohydrates, and protein in Sorghum (Sorghum bicolor L. Moench) as an economically functional food ingredient during COVID-19 pandemic. The research stages include manufacture sorghum seed extract, Antioxidant level testing using DPPH test, carbohydrate testing, determination Kjeldahl method, method consists 3 stages, namely: destructi...

Analysis of potassium ion (K+), sodium (Na+), and proteins Dalam coconut varieties water Hybrid have been done. The sample is green which was taken simple random from Deli Tua Barat village in the regency Tua. (K+) (Na+) determined by Atomic Absorption Spectrophotometry method (AAS) analysis protein Kjeldahl method. From result contain amount 321.60 mg/100 mL + 0,77 mL, 33.17 1.85 0,18 % 0.05 %...

An evaluation of a new non-destructive technique for the determination of total nitrogen in cane leaves using a Technicon infra-red reflectance analyzer is described. More than 200 leaf samples were analysed and the results indicated that a nitrogen content between 1 and 3% can be accurately determined in less than a minute. Regression analysis indicated that the N values determined by infra-re...