Cannabinoid residuals in tissues of lambs fed spent hemp biomass and consumer's exposure assessment.
Food Chem Toxicol
; 191: 114848, 2024 Sep.
Article
em En
| MEDLINE
| ID: mdl-38971552
ABSTRACT
Spent hemp biomass (SHB) contains trace amounts of cannabinoids, including Δ9-tetrahydrocannabinol (Δ9-THC), that may accumulate in the tissues of animals consuming SHB. We measured cannabinoid residues in the liver, adipose tissue, and muscle of finishing lambs fed either 10% or 20% SHB for 8 weeks, or 4 weeks followed by 4 weeks SHB withdrawal. We detected multiple cannabinoids in the liver at a similar proportion to the SHB. However, CBD and Δ9-THC were enriched >20-fold in the adipose and muscle, compared to their proportion in SHB. The highest concentration of Δ9-THC was detected in adipose tissue and was 7.4-times higher than in muscle. Most cannabinoids were undetectable in tissues after 4 weeks of clearance. The consumers' exposure assessment on Δ9-THC revealed tissue levels of total THC (THCA+Δ9-THC) that exceed the acute reference dose of 1 µg/kg BW across population groups. When consuming meat from the lambs fed 10% and 20% SHB, the maximum total THC exposure was 2.03 and 7.32 µg/kg BW, respectively, equal to or below the Lowest Observed Adverse Effect Level of 36 µg/kg BW, the No Observed Adverse Effect Level of 12 µg/kg BW or a tolerable dose intake of 7 µg/kg BW.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Canabinoides
/
Cannabis
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Food Chem Toxicol
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Indonésia