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Alterations of the Benzoxazinoid Profiles of Uninjured Maize Seedlings During Freezing, Storage, and Lyophilization
- Source :
- Pedersen, H A, Heinrichson, K & Fomsgaard, I S 2017, ' Alterations of the benzoxazinoid profiles of uninjured maize seedlings during freezing, storage, and lyophilization ', Journal of Agricultural and Food Chemistry, vol. 65, no. 20, pp. 4103-4110 . https://doi.org/10.1021/acs.jafc.7b01158
- Publication Year :
- 2017
-
Abstract
- Benzoxazinoids are highly studied compounds due to their biological activity and presence in several cereals. They include compound classes such as hydroxamic acids and lactams and usually occur as inactive glucosides in unstressed plants. Injury to the plant causes enzymatic hydrolysis of the inactive glucosides to the biologically active hydroxamic acid and lactam aglucones. The hydroxamic acids further undergo spontaneous hydrolysis to benzoxazolinones in aqueous solution. Extraction methods that do not cause immediate inactivation of enzymes result in accumulation of aglucones in samples. Using HPLC-MS to profile benzoxazinoids in maize seedlings subjected to several sample preparation techniques, we have found that hydroxamic acid aglucones and benzoxazolinones are present in uninjured maize seedlings, but that the benxozazinoid profile varies depending on sample treatment, potentially underrepresenting the glucoside content and overrepresenting the aglucone and benzoxazolinone content.
- Subjects :
- 0106 biological sciences
01 natural sciences
Zea mays
Mass Spectrometry
DIMBOA
chemistry.chemical_compound
Glucoside
Enzymatic hydrolysis
Freezing
Chromatography, High Pressure Liquid
chemistry.chemical_classification
Chromatography
Hydroxamic acid
Aqueous solution
Molecular Structure
010401 analytical chemistry
Biological activity
General Chemistry
0104 chemical sciences
Benzoxazines
Enzyme
Freeze Drying
chemistry
Biochemistry
Food Storage
Seedlings
Lactam
General Agricultural and Biological Sciences
010606 plant biology & botany
Subjects
Details
- ISSN :
- 15205118
- Volume :
- 65
- Issue :
- 20
- Database :
- OpenAIRE
- Journal :
- Journal of agricultural and food chemistry
- Accession number :
- edsair.doi.dedup.....beaffdb26d3d81a1122584ff782014ac