- Genomics, phytochemicals, and oxidative stress
- Phytochemicals and Antioxidant Activities
- Moringa oleifera research and applications
- Postharvest Quality and Shelf Life Management
- Free Radicals and Antioxidants
- Sensory Analysis and Statistical Methods
- Nanocomposite Films for Food Packaging
- Consumer Attitudes and Food Labeling
- Surfactants and Colloidal Systems
- Meat and Animal Product Quality
- Polysaccharides Composition and Applications
- Advanced Chemical Sensor Technologies
- Enzyme Catalysis and Immobilization
- Polysaccharides and Plant Cell Walls
- Agronomic Practices and Intercropping Systems
- Microencapsulation and Drying Processes
- Essential Oils and Antimicrobial Activity
- Biochemical Analysis and Sensing Techniques
- Material Properties and Processing
- Plant Physiology and Cultivation Studies
- Food composition and properties
- Nitrogen and Sulfur Effects on Brassica
- Probiotics and Fermented Foods
- Proteins in Food Systems
- Seed and Plant Biochemistry
Wageningen University & Research
2015-2024
Université d'Abomey-Calavi
2022
Unilever (Netherlands)
1993-2010
Norwegian University of Life Sciences
2008
Graduate School Experimental Plant Sciences
1986-1998
Oak Ridge National Laboratory
1989
University of California, San Diego
1965
The glucosinolates are a large group of sulphur-containing compounds which occur in all the economically important varieties Brassica vegetable. Their common structure comprises β-D-thioglucose group, sulphonated oxime moiety and variable side-chain derived from methionine, tryptophan or phenylalanine. When plant tissue is damaged hydrolysed by endogenous enzyme 'myrosinase' (thioglucoside glycohydrolase EC 3:2:3:1), to release range breakdown products including bitter, biologically active...
Consumers' increasing interest in the relationship between diet and health is a sign for food producers to pay more attention potential health-protecting compounds new product development processing. From production chain perspective choice of raw material that used important end product. Four apple cultivars (Jonagold, Golden Delicious, Cox's Orange, Elstar), which can be as fresh apples or processed products, were compared with regard flavonol, catechins, phloridzin, chlorogenic acid...
Apples are an important source of flavonoids in the human diet. The effect processing apples into juice on polyphenolic antioxidant content and activity is described. Raw obtained from Jonagold by pulping straight pressing or after pulp enzyming had that was only 10 3%, respectively, fresh apples. levels chlorogenic acid were reduced to between 50% (chlorogenic acid) 3% (catechins). Most antioxidants retained pomace rather than being transferred juice. Apparently, most compounds absorbed...
Abstract Brassica vegetables contain high amounts of glucosinolates, which contribute to the beneficial health effects their consumption. Processing such in domestic food preparation or industrial processing will influence levels glucosinolates considerably and thus affect health‐protective capacity. This study demonstrates chopping raw on glucosinolate composition. Limited breakdown aliphatic cabbage was found, whereas unexpected increased indolyl were detected after storage broccoli under...
There is a great interest in food components that possess possible health-protecting properties, as the case with flavonoids. Previous research showed conventional apple juice processing resulted juices poor flavonoids and low antioxidant activity. This paper shows it to improve flavonoid content its activity by applying an alcoholic extraction either on pulp or pomace. The levels of chlorogenic acid enriched were between 1.4 (chlorogenic acid) 9 (quercetin glycosides) times higher than...
Total and individual levels of glucosinolates (GSs) were measured in red cabbage after various microwave treatments varying time intensity the treatments. Furthermore, myrosinase enzyme activity microwave-heated vegetables was determined. The retention GSs residual hydrolytic as a result preparation compared with untreated cabbage. In general, high total GS observed for all applied Strikingly, many time/energy input combinations resulted exceeding content material. Moreover, increase seems...
Biodegradable food packaging promises a more sustainable future. Among the many different biopolymers used, poly(lactic acid) (PLA) possesses good mechanical property and cost-effectiveness necessary of biodegradable packaging. However, PLA suffers from poor water vapor oxygen barrier properties compared to petroleum-derived ones. A key challenge is, therefore, simultaneously enhance both To address this issue, we design sandwich-architectured PLA–graphene composite film, which utilizes an...
Abstract Consumption of glucosinolate-rich Brassicales vegetables is associated with a decreased risk cancer enzymatic hydrolysis glucosinolates playing key role. However, formation health-promoting isothiocyanates inhibited by the epithiospecifier protein in favour nitriles and epithionitriles. Domestic processing conditions, such as changes pH value, temperature or dilution, might also affect isothiocyanate formation. Therefore, influences these three factors were evaluated accessions...
Food packaging solutions need to be redesigned more sustainable, but determining which solution is ‘more optimal’ a very difficult task when considering the entire food product value chain. Previous papers paved way toward sustainable definition, it far from being commonly accepted or well usable in broad systems domain, further results uninformed choices for made by all stakeholders chain: producers, distributors, practitioners and consumers. Therefore, this work aims first at giving...
Kinetic data are reported describing the stability of various classes polyphenolic antioxidants in an apple juice enriched these compounds as a function storage temperature and oxygen concentration. The most thermally sensitive were quercetin glycosides epicatechin, whereas phloridzin chlorogenic acid more stable. showed differences their stability: galactoside approximately rhamnoside > glucoside/rutinoside arabinoside. effect presence on degradation rates was clear for only to lesser...
Proteins are spontaneously transferred from an aqueous solution into reversed micelles, provided the phase has proper composition. Besides composition of phase, organic and properties proteins also play a role. We studied uptake profiles 19 as function pH solution. The consisted trioctylmethylammonium chloride nonylphenol pentaethoxylate (Rewopal HV5) surfactant, octanol cosurfactant isooctane continuous phase. In all cases, except for rubredoxin, were at values above their isoelectric...