Lipophilic bioactive compounds in the oils recovered from cereal by‐products. (9th December 2015)

• Record Type: Journal Article
• Authors: Górnaś, Paweł; Rudzińska, Magdalena; Raczyk, Marianna; Soliven, Arianne
• Is Part Of: Journal of the science of food and agriculture. Volume 96:Number 9(2016)
• Page Start: 3256
• Page End: 3265
• Publication Date: 2015-12-09
• Subjects: tocopherols -- tocotrienols -- fatty acids -- phytosterols -- cereal by‐products -- bran oils; Food -- Periodicals; Agriculture -- Periodicals; 664
• DOI: 10.1002/jsfa.7511
• Languages: English
• ISSNs: 0022-5142

Abstract

Abstract: BACKGROUND: The by‐products of seven different cereal grains were investigated as a source of extractable oil, rich in lipophilic bioactive compounds. RESULTS: Oil yields (g kg −1 DW) recovered from cereal by‐products were as follows: 189 (rice bran) > 112 (wheat germ) > 74 (corn bran) > 58 (oat bran) > 41 (buckwheat bran) > 39 (spelt bran) > 33 (wheat bran) > 27 (rye bran). The main fatty acids identified in the studied oil samples were palmitic acid (11.39–17.23%), oleic acid (11.76–42.73%), linoleic acid (35.54–62.65%) and α ‐linolenic acid (1.05–9.46%). The range of total tocochromanols and phytosterols in the obtained oils was 0.369–3.763 and 1.19–35.24 g kg −1 of oil, respectively. The oils recovered from buckwheat and corn bran, and wheat germ were dominated by tocopherols (99.9, 84.2 and 96.5%, respectively), whereas the oat, rice, rye, spelt, wheat bran oils were rich in tocotrienols (73.9, 79.6, 78.1, 90.6 and 73.8%, respectively). The campesterol and β ‐sitosterol constituted 10.1–32.5 and 30.4–63.7%, respectively, of total phytosterols contents identified in all of the studied samples. CONCLUSION: The present study demonstrated that oils recovered from the cereal by‐products are richer sources of bioactive compounds, compared with traditional oils. © 2015 Society of Chemical Industry