Paweł Górnaś1, Magdalena Rudzińska2, Marianna Raczyk2, Arianne Soliven3. 1. Latvia State Institute of Fruit-Growing, Graudu 1, Dobele, LV-3701, Latvia. 2. Institute of Food Technology of Plant Origin, Faculty of Food Science and Nutrition, Poznań University of Life Sciences, Wojska Polskiego 31, 60-624, Poznań, Poland. 3. Australian Centre for Research on Separation Sciences (ACROSS), School of Science and Health, University of Western Sydney (Parramatta), Sydney, NSW, Australia.
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.
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.
Authors: Ana López-Cobo; Beatriz Martín-García; Antonio Segura-Carretero; Alberto Fernández-Gutiérrez; Ana María Gómez-Caravaca Journal: Int J Mol Sci Date: 2017-07-22 Impact factor: 5.923
Authors: Titilayo D O Falade; Panagiotis K Chrysanthopoulos; Mark P Hodson; Yasmina Sultanbawa; Mary Fletcher; Ross Darnell; Sam Korie; Glen Fox Journal: Toxins (Basel) Date: 2018-05-07 Impact factor: 4.546