Protein and Fiber Profiles of Cottonseed from Upland Cotton with Different Fertilizations

Abstract

Whole cottonseed and its derived products can be used as human food, animal feed, and industrial raw material. Chemical composition of cottonseed is one of the critical parameters for evaluating its quality and potential end use. Especially, protein and dietary fibers are two desirable nutritional properties of cottonseed for animal feed. In this study, we determined their contents in cottonseed harvested from different fertilization managements with or without wheat cover crop in two consecutive years. Seed content of crude protein increased in the order of no fertilizer ≤ poultry litter ≤ chemical fertilizer. Both neutral and acid detergent fiber profiles were affected by fertilization and planting year/cover crop in an order reversing that of crude protein. Few statistically significant (P>0.05) impacts were observed on the content of acid detergent lignin. Observations derived from this work will provide information on nutritional value and digestibility of cottonseed as affected by cropping management practices.

Pilot-Scale Production of Washed Cottonseed Meal and Co-Products

“…This observation indicated that the amino acids cysteine (cystine) and/or methionine in protein (He et al, 2014d;Voet & Voet, 1990) were the major S source in the products. Furthermore, a high S content in CSPw than in CSPa and CSPI was consistent with the previous observation that the content of cysteine of CSPa was the highest among the three lab-produced protein fractions (He et al, 2014f). The contents of the micromineral elements were in the general range of cottonseed and meal products (Bellaloui et al, 2015a;Bellaloui & Turley, 2013;He et al, 2013b).…”

“…The contents of the micromineral elements were in the general range of cottonseed and meal products (Bellaloui et al, 2015a;Bellaloui & Turley, 2013;He et al, 2013b). Similar to those lab-produced products (He et al, 2014f) and due to the nature of micro abundance, the changes of these mineral contents were relatively small, compared to the percentage of the major components and macro elements in the composition of these products. A positive observation was that, without remarkable changes in these micro minerals and other nutrients, CSIR could be used at least as animal feedstuffs as CSM does (Arieli, 1998;Bellaloui et al, 2015b) whereas its industrial utilization need to be explored.…”

“…Acid detergent fiber (ADF), neutral detergent fiber (NDF) and acid detergent lignin (ADL) were determined using the filter bag methods with an Ankom Fiber Analyzer (Ankom Technology, Macedon, NY) (He et al, 2014f). Contents of cellulose and hemicellulose were calculated per the differences between ADF and ADL, and that between NDF and ADF, respectively (He et al, 2015;Wolfrum et al, 2009).…”

“…Crude protein content in the samples was calculated by multiplying the total N by a factor of 6.25 (He et al, 2014f;Proto et al, 2000).…”

Adhesive properties of water-washed cottonseed meal on four types of wood

“…and carbohydrates, it is not suitable for consumption by human and other monogastric animals due to the presence of toxic gossypol. [2,6] It is currently used as low value fertilizers and feedstuff of ruminant animals. [2,7] Therefore, we have conducted research on the industrial utilization of cottonseed meal as wood adhesives in order to increase the value of the defatted meal fraction.…”