background: l-tryptophan is used widespread in the pharmaceutical industry. the majority of l-trp production depends on microbial processes that produce l-tryptophan from indole and l-serine. these processes are very costly due to the costs of precursors, especially l-serine. use of inexpensive substitutions as the l-serine source of l-tryptophan production enables us to reach a cost-effective ...

Viscosity of molasses is determined under standard conditions (50°C, 80% Karl Fischer solids) using a Hoeppler viscosimeter. Samples are pretreated by dilution and concentration under vacuum to dissolve crystal and remove air. Measurements are made at two different concentrations, preferably slightly below and slightly above 80% solids and the required value obtained by extrapolation using the ...

The radiation of 14C is very weak 14C+ 14N t PSucrose in first expressed juice and mixed juice was determined by isotope dilution and the results were compared with the conventional pol determination. i t was found that the sucrose content on the average was 0,25% higher using the ID method. Molasses samples, on the contrary, showed a sucrose content which was 0,71% lower than the value found b...

A total of 24 castrated male Creole were used for digestibility studies on three sugarcane (SC) products: final molasses, SC juice and ground SC. Digestibility of macronutrients were determined in three consecutive experimental trials between 35 and 60 kg BW. The first trial measured the effect of a constant rate of incorporation of those SC products in a control diet (23% on a dry matter (DM) ...

The Indonesian government is gradually reducing its dependence on petroleum fuels by mixing it with biofuels. One of the biofuels used bioethanol made from molasses. This study aims to analyze potential for sugarcane development at farm level, identify bioenergy problems, and provide recommendations based research was conducted in East Java Province 2016, updated data 2019. analytical methods w...

Pichia veronae strain HSC-22 (accession number KP012558) showed a good tolerance to relatively high temperature, ethanol and sugar concentrations. Response surface optimization based on central composite design of experiments predicted the optimal values of the influencing parameters that affect the production of bioethanol from sugarcane molasses to be as follows: initial pH 5, 25% (w : v) ini...

We address recent developments in the exploration of quantum nuclear dynamics in large, Ðnite, low-temperature systems, focusing on BoseÈEinstein condensates (T ^ 100 nK), optical molasses (T ^ 10È100 lK) and aromatic clusters (T \ 0.4 K). The expansion of optical molasses bears a close analogy molecule ÉHe n to the nuclear dynamics of Coulomb explosion of multicharged clusters. Spectroscopy of...

in order to reduce the costs associated with poly-β-hydroxybutyrate production, growth and poly-β-hydroxybutyrate production of ralstonia eutropha were studied in batch culture on different carbon sources. experiments were designed and conducted to not only lower the cost of poly-β-hydroxybutyrate production by using inexpensive substrates, but also to increase poly-β-hydroxybutyrate production...