Presence of free gossypol in whole cottonseed

Helle Katrine Knutsen, Lars Barregård, Margherita Bignami, Beat Brüschweiler, Sandra Ceccatelli, Michael Dinovi, Lutz Edler, Bettina Grasl-Kraupp, Christer Hogstrand, Laurentius (Ron) Hoogenboom, Carlo Stefano Nebbia, Isabelle P. Oswald, Annette Petersen, Martin Rose, Alain-Claude Roudot, Tanja Schwerdtle, Christiane Vleminckx, Günter Vollmer, Heather Wallace, Alexander Jan & 3 others Bruce Cottrill, Karen Mackay, EFSA Panel on Contaminants in the Food Chain (CONTAM)

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Abstract

The European Commission asked EFSA to assess information provided by the Spanish Ministry of Agriculture, Food and Environment, on the toxicity of free gossypol in relation to the use of whole cotton seed in feed for ruminants, in particular dairy cows, and, if necessary, to update the previous opinion of the EFSA Panel on Contaminants in the Food Chain (CONTAM) on gossypol as an undesirable substance in animal feed. Gossypol is a polyphenolic compound that exists in a racemic mixture of (+)‐gossypol and (‐)‐gossypol isomers. It occurs in free or (protein‐) bound forms in cottonseeds. The most commonly used cottonseeds in feed are from Upland and Pima varieties. The Pima variety is considered more toxic due to a higher content of the (‐)‐gossypol isomer. Upland whole cottonseeds (WCS) are fed with no further processing (after delinting); Pima varieties normally undergo further processing (grinding or cracking). It is claimed that WCS have a greater retention time in the rumen, which results in an increased detoxifying activity, compared to a shorter ruminal retention time, in the case of cracked cottonseed or cottonseed meal products. Increased erythrocyte fragility has been observed in cows given WCS Upland varieties at similar exposure levels as those resulting from an inclusion rate of 10% of WCS containing gossypol at 7,000 mg/kg in feed – the maximum permitted level of gossypol in WCS suggested by the Spanish Delegation. The information from the Spanish delegation does not differentiate between varieties in their suggestion for an increase in the maximum permitted content of free gossypol for WCS. As both Upland and Pima varieties are grown in the EU and are used for animal feed, both varieties of WCS should be considered. The CONTAM Panel considered it not necessary to update the previous opinion.
Original languageEnglish
Article numbere04850
Number of pages15
JournalEFSA Journal
Volume15
Issue number7
Early online date31 Jul 2017
DOIs
Publication statusPublished - Jul 2017

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gossypol
cottonseed
highlands
isomers
meals (products)
cottonseed meal
cracking
food contamination
grinding
food chain
ruminants
rumen
polyphenols
erythrocytes
dairy cows

Keywords

  • whole cottonseed
  • feed
  • ruminants
  • free gossypol
  • toxicity

Cite this

Knutsen, H. K., Barregård, L., Bignami, M., Brüschweiler, B., Ceccatelli, S., Dinovi, M., ... EFSA Panel on Contaminants in the Food Chain (CONTAM) (2017). Presence of free gossypol in whole cottonseed. EFSA Journal, 15(7), [e04850]. https://doi.org/10.2903/j.efsa.2017.4850

Presence of free gossypol in whole cottonseed. / Knutsen, Helle Katrine ; Barregård, Lars; Bignami, Margherita; Brüschweiler, Beat ; Ceccatelli, Sandra; Dinovi, Michael; Edler, Lutz; Grasl-Kraupp, Bettina ; Hogstrand, Christer ; Hoogenboom, Laurentius (Ron) ; Nebbia, Carlo Stefano ; Oswald, Isabelle P.; Petersen, Annette ; Rose, Martin ; Roudot, Alain-Claude ; Schwerdtle, Tanja ; Vleminckx, Christiane ; Vollmer, Günter ; Wallace, Heather; Jan, Alexander; Cottrill, Bruce; Mackay, Karen; EFSA Panel on Contaminants in the Food Chain (CONTAM).

In: EFSA Journal, Vol. 15, No. 7, e04850, 07.2017.

Research output: Contribution to journalArticle

Knutsen, HK, Barregård, L, Bignami, M, Brüschweiler, B, Ceccatelli, S, Dinovi, M, Edler, L, Grasl-Kraupp, B, Hogstrand, C, Hoogenboom, LR, Nebbia, CS, Oswald, IP, Petersen, A, Rose, M, Roudot, A-C, Schwerdtle, T, Vleminckx, C, Vollmer, G, Wallace, H, Jan, A, Cottrill, B, Mackay, K & EFSA Panel on Contaminants in the Food Chain (CONTAM) 2017, 'Presence of free gossypol in whole cottonseed' EFSA Journal, vol. 15, no. 7, e04850. https://doi.org/10.2903/j.efsa.2017.4850
Knutsen HK, Barregård L, Bignami M, Brüschweiler B, Ceccatelli S, Dinovi M et al. Presence of free gossypol in whole cottonseed. EFSA Journal. 2017 Jul;15(7). e04850. https://doi.org/10.2903/j.efsa.2017.4850
Knutsen, Helle Katrine ; Barregård, Lars ; Bignami, Margherita ; Brüschweiler, Beat ; Ceccatelli, Sandra ; Dinovi, Michael ; Edler, Lutz ; Grasl-Kraupp, Bettina ; Hogstrand, Christer ; Hoogenboom, Laurentius (Ron) ; Nebbia, Carlo Stefano ; Oswald, Isabelle P. ; Petersen, Annette ; Rose, Martin ; Roudot, Alain-Claude ; Schwerdtle, Tanja ; Vleminckx, Christiane ; Vollmer, Günter ; Wallace, Heather ; Jan, Alexander ; Cottrill, Bruce ; Mackay, Karen ; EFSA Panel on Contaminants in the Food Chain (CONTAM). / Presence of free gossypol in whole cottonseed. In: EFSA Journal. 2017 ; Vol. 15, No. 7.
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title = "Presence of free gossypol in whole cottonseed",
abstract = "The European Commission asked EFSA to assess information provided by the Spanish Ministry of Agriculture, Food and Environment, on the toxicity of free gossypol in relation to the use of whole cotton seed in feed for ruminants, in particular dairy cows, and, if necessary, to update the previous opinion of the EFSA Panel on Contaminants in the Food Chain (CONTAM) on gossypol as an undesirable substance in animal feed. Gossypol is a polyphenolic compound that exists in a racemic mixture of (+)‐gossypol and (‐)‐gossypol isomers. It occurs in free or (protein‐) bound forms in cottonseeds. The most commonly used cottonseeds in feed are from Upland and Pima varieties. The Pima variety is considered more toxic due to a higher content of the (‐)‐gossypol isomer. Upland whole cottonseeds (WCS) are fed with no further processing (after delinting); Pima varieties normally undergo further processing (grinding or cracking). It is claimed that WCS have a greater retention time in the rumen, which results in an increased detoxifying activity, compared to a shorter ruminal retention time, in the case of cracked cottonseed or cottonseed meal products. Increased erythrocyte fragility has been observed in cows given WCS Upland varieties at similar exposure levels as those resulting from an inclusion rate of 10{\%} of WCS containing gossypol at 7,000 mg/kg in feed – the maximum permitted level of gossypol in WCS suggested by the Spanish Delegation. The information from the Spanish delegation does not differentiate between varieties in their suggestion for an increase in the maximum permitted content of free gossypol for WCS. As both Upland and Pima varieties are grown in the EU and are used for animal feed, both varieties of WCS should be considered. The CONTAM Panel considered it not necessary to update the previous opinion.",
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AU - Knutsen, Helle Katrine

AU - Barregård, Lars

AU - Bignami, Margherita

AU - Brüschweiler, Beat

AU - Ceccatelli, Sandra

AU - Dinovi, Michael

AU - Edler, Lutz

AU - Grasl-Kraupp, Bettina

AU - Hogstrand, Christer

AU - Hoogenboom, Laurentius (Ron)

AU - Nebbia, Carlo Stefano

AU - Oswald, Isabelle P.

AU - Petersen, Annette

AU - Rose, Martin

AU - Roudot, Alain-Claude

AU - Schwerdtle, Tanja

AU - Vleminckx, Christiane

AU - Vollmer, Günter

AU - Wallace, Heather

AU - Jan, Alexander

AU - Cottrill, Bruce

AU - Mackay, Karen

AU - EFSA Panel on Contaminants in the Food Chain (CONTAM)

N1 - Adopted: 10 May 2017

PY - 2017/7

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N2 - The European Commission asked EFSA to assess information provided by the Spanish Ministry of Agriculture, Food and Environment, on the toxicity of free gossypol in relation to the use of whole cotton seed in feed for ruminants, in particular dairy cows, and, if necessary, to update the previous opinion of the EFSA Panel on Contaminants in the Food Chain (CONTAM) on gossypol as an undesirable substance in animal feed. Gossypol is a polyphenolic compound that exists in a racemic mixture of (+)‐gossypol and (‐)‐gossypol isomers. It occurs in free or (protein‐) bound forms in cottonseeds. The most commonly used cottonseeds in feed are from Upland and Pima varieties. The Pima variety is considered more toxic due to a higher content of the (‐)‐gossypol isomer. Upland whole cottonseeds (WCS) are fed with no further processing (after delinting); Pima varieties normally undergo further processing (grinding or cracking). It is claimed that WCS have a greater retention time in the rumen, which results in an increased detoxifying activity, compared to a shorter ruminal retention time, in the case of cracked cottonseed or cottonseed meal products. Increased erythrocyte fragility has been observed in cows given WCS Upland varieties at similar exposure levels as those resulting from an inclusion rate of 10% of WCS containing gossypol at 7,000 mg/kg in feed – the maximum permitted level of gossypol in WCS suggested by the Spanish Delegation. The information from the Spanish delegation does not differentiate between varieties in their suggestion for an increase in the maximum permitted content of free gossypol for WCS. As both Upland and Pima varieties are grown in the EU and are used for animal feed, both varieties of WCS should be considered. The CONTAM Panel considered it not necessary to update the previous opinion.

AB - The European Commission asked EFSA to assess information provided by the Spanish Ministry of Agriculture, Food and Environment, on the toxicity of free gossypol in relation to the use of whole cotton seed in feed for ruminants, in particular dairy cows, and, if necessary, to update the previous opinion of the EFSA Panel on Contaminants in the Food Chain (CONTAM) on gossypol as an undesirable substance in animal feed. Gossypol is a polyphenolic compound that exists in a racemic mixture of (+)‐gossypol and (‐)‐gossypol isomers. It occurs in free or (protein‐) bound forms in cottonseeds. The most commonly used cottonseeds in feed are from Upland and Pima varieties. The Pima variety is considered more toxic due to a higher content of the (‐)‐gossypol isomer. Upland whole cottonseeds (WCS) are fed with no further processing (after delinting); Pima varieties normally undergo further processing (grinding or cracking). It is claimed that WCS have a greater retention time in the rumen, which results in an increased detoxifying activity, compared to a shorter ruminal retention time, in the case of cracked cottonseed or cottonseed meal products. Increased erythrocyte fragility has been observed in cows given WCS Upland varieties at similar exposure levels as those resulting from an inclusion rate of 10% of WCS containing gossypol at 7,000 mg/kg in feed – the maximum permitted level of gossypol in WCS suggested by the Spanish Delegation. The information from the Spanish delegation does not differentiate between varieties in their suggestion for an increase in the maximum permitted content of free gossypol for WCS. As both Upland and Pima varieties are grown in the EU and are used for animal feed, both varieties of WCS should be considered. The CONTAM Panel considered it not necessary to update the previous opinion.

KW - whole cottonseed

KW - feed

KW - ruminants

KW - free gossypol

KW - toxicity

U2 - 10.2903/j.efsa.2017.4850

DO - 10.2903/j.efsa.2017.4850

M3 - Article

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JO - EFSA Journal

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