The differences in walnut cultivars related to their chemical composition have been widely reported. These chemical differences result in the differences in the physical parameters of the walnut oils and walnut defatted flours (DF) obtained from cold pressing. In this study, the physical parameters of walnut kernels, walnut oils and DF obtained from nine different cultivars are analysed. Additionally, the effect of the genotype, the crop year and the interaction between both on the colour parameters of walnut oil and DF is studied. The obtained results show that oil colour is mainly determined by the crop year, while the colour of DF is determined by the genotype, the crop year and the interaction of between them. L* is the most useful parameter for cultivar discrimination if two crop years are considered. Among the physical parameters of walnut products, oil viscosity can be considered a parameter of oil quality because it shows strong correlations with the oil fatty acid profile and the concentration of specific triglycerides (LLL, OLO and POO). Physical parameters have been reported to be crucial for consumers and for the food industry and should be considered as quality parameters of walnut by-products.
LWT - Food Science and Technology – Elsevier
Published: May 1, 2018
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.
All for just $49/month
Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.
Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.
It’s easy to organize your research with our built-in tools.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera