Most papers I find only estimate total carotenoid amounts, but I need more detail than that.
this attachment is the one i got about your question. the main carotenoids which present in hemp seed oil are beta carotene, lutein and zeaxanthin.
Thank you so much for your care! This is a precious information for me!
You should also be aware of the likely cars in plant leaves, that may show up in oil:
The diversity of carotenoids in plant leaves (i.e. chloroplasts)
is generally low with components of the xanthophyll
cycle (i.e. violaxanthin, antheraxanthin and zeaxanthin),
b,b-carotene, lutein, neoxanthin, b,e-carotene, b-cryptoxanthin
and lutein 5,6-epoxide being the most commonly
occurring. The carotenoids in bold above are generally
found at the highest concentrations in leaves and lactucaxanthin
occurs in some species such as lettuce (Britton
1995b; Britton et al. 2004). Lycopene is a precursor to all of
these, but the metabolic pull is likely so strong that it does
not accumulate in the leaves. However, lycopene is a common
component of red fruits such as tomato and pepper
where photosynthesis is low or non-existent.
From p. 3 of Heath, J.J., D. Cipollini, and J.O. Stireman III. 2013. The role of carotenoids and their derivatives in mediating interactions between insects and their environment. Arthropod-Plant Interactions. DOI 10.1007/s11829-012-9239-7
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