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- Title
Efecto de la fotolisis y pH en la degradación de la oxitetraciclina en sedimento y agua marina.
- Authors
Griselda Sotelo-Cornejo, Karen; Espinosa-Plascencia, Angelica; Gámez-Bayardo, Sergio; Pérez-Álvarez, Adolfo; Jiménez-Edeza, Maribel; García-Galaz, Alfonso; del Carmen Bermúdez-Almada, María
- Abstract
Oxytetracycline (OTC) is an antibiotic frequently used in the control of diseases caused by Vibrio in Penaeus vannamei shrimp farms. The degradation of OTC was evaluated in samples of sediment and seawater (2:98 w/v), one with an OTC standard and another with OTC in shrimp feed, both at 10 μgmL-1. The tests lasted 40 days, and the abiotic factors were evaluated, such as the exposure to light, and the effect of the pH (7 and 8). The samples with OTC standard exposed to light, had a degradation of the antibiotic of 100% for both pH values; In the unexposed samples to light, the degradation was 88.33% at pH 7 and 90.90% at pH 8. In the samples with OTC in shrimp feed, the degradation was 100% at 40 days, with and without exposure to light, at different pH values. The half-life time of OTC degradation in shrimp feed was lower with due to the samples added with standard with and without exposure to light (P ≤ 0.05). OTC residues can be degraded by the effect of light and pH, reducing their permanence in aquaculture sediments.
- Subjects
WHITELEG shrimp; SHRIMP culture; PH effect; OXYTETRACYCLINE; SHRIMPS
- Publication
TIP Revista Especializada en Ciencias Químico-Biológicas, 2021, Vol 24, p1
- ISSN
1405-888X
- Publication type
Article
- DOI
10.22201/fesz.23958723e.2021.369