African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12487

Full Length Research Paper

Immunogenicity of novel sulfadimethoxide conjugates

Lei Chen1, Jianyu Su2*, Xiangzhai Zhang3, Lin Li2 and Xiaowei He2
1Institute for Agro-product Processing,  Anhui Academy of Agricultureal Sciences, Hefei, 230031,China.  2School of Light Industry and Food Sciences, South China University of Technology, Guangzhou, 510640,China. 3Key Laboratory of Hebei Province Preventive Veterinary Medicine, Hebei Normal University of Science and Technology, Qinhuangdao, 066004,China.
Email: [email protected]

  •  Accepted: 06 May 2011
  •  Published: 29 August 2011

Abstract

Sulfadimethoxine (SDM) is an antibiotic commonly added to animal feeds. Anti-SDM antibodies are useful for the detection of residual SDM in foods, feeds and biological fluids by ELISA. In this study, we show that SDM is immunogenic in rabbits when it is conjugated with soy 11S globulin or with β-amylase. Rabbit anti-SDM antibodies obtained by immunization with SDM-11S and SDM-beta-amylase displayed low cross-reactivity against other sulfonamides, including sulfamethazine (SM2), sulfasulfonamides (SN), sulfadiazine (SD), sulfamethoxypyrazine (SMP), sulfalene (SMZ), sulfaquinoxaline (SQX). Thus, soy 11S globulin and β-amylase are suitable carriers for the induction of anti-SDM antibodies and have the advantage of being cheaper that BSA.

 

Key words: Sulfadimethoxine (SDM), sulfasulfonamides (SN), sulfadiazine (SD), sulfamethazine (SM2), sulfamethoxypyrazine (SMP), sulfalene (SMZ), sulfaquinoxaline (SQX), rabbit anti-SDM antibodies, soy 11S globulin, SDM-beta-amylase.

Abbreviation

SDM, Sulfadimethoxine; SN, sulfasulfonamides; SD, sulfadiazine; SM2, sulfamethazineSMP, sulfamethoxypyrazineSMZ, sulfaleneSQX,sulfaquinoxalineDNP, 2,4-dinitrophenylBPO, benzylpenicilloyi; BaA, bacterial α-amylaseTAA,taka-amylase ABSA, bovine serum albuminHSA, human serum albuminKLH, keyhole limpet hemocyanin