Removal of cellulose from sunflower meal by fractionation

Abstract

The dependence of sunflower meal fractionation on the following factors was investigated: quality of original meals, 37.5%, 40.0% and 42.5% crude protein; screen hole size, 1.5 mm, 2.0 ram, 2.5 mm and 3.0 mm; and single phase and two-phase fraetionation. The following conclusions were drawn. The increased protein levels in original meals (from 37.5% to 42.5% crude protein) had considerably greater effects on the quality than on the yield of the protein fractions. Increased screen hole size (from 1.5 mm to 2.5 mm) increased the yield of the protein fractions by 16.4-22.3%, but reduced the protein level in these fractions by 2.3-2.8%. Two-phase fractionation of the original meals with 40.0% and 42.5% crude protein increased the protein yield in the resulting protein fractions by 15.5-22.8%. The most efficient fractionation procedures rendered high yields of attractive protein fractions that contained 44.0-47.5% crude protein. The protein fractions were analyzed for physico-functional constants and • Rmlno acid composition. The most efficient and applicable fractionation procedures, those that may be successfully used in oil refineries, were selected.KEY WORDS: Amino acids, decellulosing, fractionation, physical characteristics, protein fraction, sunflower meal.Conventional sunflower meals contain 34% and 37% crude protein and 23% and 18% crude cellulose (1). These un-

Metal accumulation by sunflower (Helianthus annuus L.) and the efficacy of its biomass in enzymatic saccharification

“…A significantly higher dose of fungal laccase (100 U/mL) was used to achieve 77.5% detoxification of sugarcane bagasse after 5 h of incubation [ 33 ]. However, the current study utilized only 10 U/mL of TcLac: 1/10th the dosage reported in a previous study [ 34 ]. Previous studies have also confirmed the inducing effect of detoxification on ethanol productivity [ 35 ].…”

Sunflower meal protein as a feed for broilers

“…Thus, an inverse relation is seen between the protein and fibre contents of sunflower meal. These meals are mixtures of protein containing kernel and hulls in the approximate ratios of about 60:40% (3,4). In other regions, protein content of sunflower meals is very often lower than 28% and fiber content is higher than 30%.…”

“…Technological solution for the production of sunflower meal with 44% crude protein, based on the results of the research conducted by the Feed Technology Department of the Faculty of Technology in Novi Sad has been introduced and implemented in several edible oil plants. Based on this solution, from 100 kg of initial sunflower meal containing 37-38% of crude protein 35-40% of sunflower meal with 44% crude protein and 65-60% sunflower meal with 33% crude protein may be obtained (4,5). To describe the quality of sunflover meal, chemical composition of two conventional and one high-protein sunflower meal with 44% crude proteine in comparation to soybean meal are shown in Table 1.…”

“…But, it contains considerably smaller amounts of lysine, leucine and tyrozine than soybean meal. The concentrations of methionine, cystine and arginine are higher in sunflower meal compared to soybean meal, while those of tryptophan and valine are comparable (3,4,12) .…”

Sunflower protein enrichment. Methods and potential applications

“…The same authors explain the importance of the operating parameters of the gravity table, namely the longitudinal and transverse deck inclination, the deck eccentric speed and the particles fluidizing conditions (the air flow rate). A detailed description of the operating principle of the gravity table is provided by (Das, 1986) who highlights that the particles will Sieving/ Screening (Davin, 1983) Rapeseed (Mostafa and Murru, 2018) Rapeseed (Saito et al, 2007) Rapeseed (Leterme, 2013) Sunflower (McCurdy and March, 1992) Rapeseed (Lević et al, 1992) Sunflower Air classification (Laudadio et al, 2013) Sunflower (Ulrich, 2002(Ulrich, , 2010 Sunflower (Delrue and Van De Watering, 2008) Rapeseed (Laguna et al, 2018) Rapeseed/ Sunflower (Banjac et al, 2013; Sunflower Electrostatic separation (Delrue and Van De Watering, 2008) Rapeseed (Basset et al, 2016) Rapeseed (Laguna et al, 2018) Rapeseed/ Sunflower (Xing et al, 2018) Soybean (Kdidi et al, 2019) Rapeseed Gravity separation (Hahn et al, 2014) Sunflower/ Rapeseed Table 2. Typical composition of commercial dehulled and non-dehulled sunflower meal.…”