Evaluation of clinical examination location on stress in cats: a randomized crossover trial
JOURNAL OF FELINE MEDICINE AND SURGERY
Authors: Griffin, Francesca C.; Mandese, Wendy W.; Reynolds, Penny S.; Deriberprey, Alexis S.; Blew, Alyssa C.
Abstract
Objectives The objective of this study was to quantify the effects of owner separation and physical examination location on fear, anxiety and stress (FAS) behavioral indicators in cats. Methods The study was a prospective, non-blinded, randomized, two-period, two-treatment crossover trial. Healthy adult cats presenting for wellness or dental evaluations at a single veterinary teaching hospital received three physical examinations: a baseline assessment (owner present) followed by physical examinations in both a treatment area (owner absent [TAOA]) and an examination room (owner present [EROP]). The physical examination sequence order was randomized. Low-stress handling techniques were used for all examinations. The primary endpoints were heart rate (HR; beats per min [bpm]) and total FAS scores. HR was measured by auscultation, and FAS by five specific behaviors scored as 0/1 and summed for each assessment period. Results Twenty-one healthy cats were enrolled. HR measured at entry (baseline) was a significant determinant of subsequent HR readings. HR measured during examinations conducted in both EROP and TAOA were elevated to levels indicative of stress (>180 bpm). HR was significantly higher for TAOA relative to EROP (30 bpm, 95% confidence interval 18-43; P <0.001). Behavioral FAS scores showed no statistically significant effects of sequence or room. FAS scores for TAOA assessments were clinically elevated relative to baseline (1.5 FAS, SE 0.7; P = 0.05); EROP FAS scores relative to baseline did not differ statistically (0.5 units, SE = 0.5; P = 0.43). Conclusions and relevance Owner separation coupled with physical examination location can result in clinically significant increases in perceived stress in cats, and compromise vital sign assessments. Whenever possible, physical examinations and procedures should take place with the owner present with separation from unfamiliar dogs and cats.
Valorisation of Tomato Peel Waste as a Sustainable Source for Pectin, Polyphenols and Fatty Acids Recovery Using Sequential Extraction
WASTE AND BIOMASS VALORIZATION
Authors: Nincevic Grassino, Antonela; Djakovic, Senka; Bosiljkov, Tomislav; Halambek, Jasna; Zoric, Zoran; Dragovic-Uzelac, Verica; Petrovic, Marinko; Rimac Brncic, Suzana
Abstract
The opportunity of tomato peel waste exploitation for simultaneous recoveries of high value compounds, such as pectin, polyphenols and fatty acids (FAs) is presented in this work. Prior to polyphenols and FAs extraction, the pectin removed from tomato cuticle was evaluated as possible tin corrosion inhibitor using electrochemical impedance spectroscopy. Subsequently, de-pectinized tomato peels are evaluated as appropriate bio-substrate for polyphenols and FAs recovery, using chromatographic analyses. Corrosion tests (24 h) showed that pectin (4 g/L) isolated from tomato peel act as more efficient tin corrosion inhibitor (eta = 65.8%) than commercial apple pectin (eta = 52.3%), which points out that it could be used as natural corrosion inhibitor. The polyphenols data showed that de-pectinized samples contained higher amounts of total phenols (2485.68-4064.46 mg/100 g, in 96% ethanol) and chlorogenic acid derivative (86.13-454.34 109 mg/100 g, in 70% ethanol) than samples with pectin incorporated in tomato cuticle. In addition, de-pectinized samples contained more polyunsaturated FAs (~ 45%) than samples with pectin (~ 26). Furthermore, both types of peels contained linoleic, palmitic and oleic acids as three dominants, and thus represented valuable source of nutritive oils. Their presence was also confirmed by FTIR and NMR spectroscopy. Therefore, obtained findings revealed that already exploited tomato peel for pectin production could be effectively re-used for polyphenols and FAs recoveries, providing valuable benefits, either for producers and consumers, such as decreasing the waste disposal costs and take opportunity that isolated compounds could be reintroduced into food. Graphic