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. 2022 Jul 29;4:45. doi: 10.1186/s42238-022-00156-7

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Fig. 1 — Food-grade hemp seed is harvested from industrial hemp plants with less than 1% (–)-trans-Δ⁹-tetrahydrocannabinol (THC). The hemp seed is comprised of an outer hull which is high in dietary fibre and the heart (seed embryo) which is rich in protein and fats. Whole hemp seeds are milled into hemp flour which is sequentially extracted to produce hemp oil and hemp protein concentrates/isolates which are used for food formulation. Residues from these extractions, hemp seed cake and hemp seed meal, can also be used to fortify foods with antioxidants and dietary fibre. Residue hemp plant biomass may also be a source of antioxidant compounds and short fibres for materials.