Enhancement of γ-aminobutyric acid, avenanthramides, and other health-promoting metabolites in germinating oats (Avena sativa L.) treated with and without power ultrasound.
Food Chem
; 283: 239-247, 2019 Jun 15.
Article
em En
| MEDLINE
| ID: mdl-30722867
ABSTRACT
Power ultrasound as an emerging processing technology has been investigated for stimulating seeds to enhance germination and accumulation of health-promoting metabolites, such as γ-aminobutyric acid (GABA) and phenolic compounds. This work was undertaken to evaluate the effects of power ultrasound (25â¯kHz) on the nutritional properties of germinated oats, and the microstructure of oat groats after treatment. The changes in the external and internal microstructures of the ultrasound-treated oats kernel were investigated using Environmental Scanning Electron Microscopy (ESEM) and 3D X-ray Micro Computed Tomography (Micro-CT). Physicochemical properties of oats including GABA, free sugars, avenanthramides, total phenolic content, and antioxidant capacities were enhanced after germination. Furthermore, the power ultrasound treatment for 5â¯min after soaking significantly enhanced the GABA (48-96â¯h), alanine (24-96â¯h), succinic acid (48-72â¯h), total phenolic content (24â¯h), and total avenanthramides (24â¯h) in the germinated oats.
Palavras-chave
Alanine (PubChem CID: 5950); Antioxidant capacities; Avenanthramides; Fructose (PubChem CID: 5984); GABA; GABA (PubChem CID: 119); Germination; Glucose (PubChem CID: 5793); Glutamic acid (PubChem CID: 33032); Maltose (PubChem CID: 6255); Oats; Power ultrasound; Succinic acid (PubChem CID:1110); Sucrose (PubChem CID: 5988)
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Avena
/
Ortoaminobenzoatos
Idioma:
En
Revista:
Food Chem
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Estados Unidos