Evolution of tryptophan and its foremost metabolites’ concentrations in milk and fermented dairy products

  title={Evolution of tryptophan and its foremost metabolites’ concentrations in milk and fermented dairy products},
  author={Antonella Bertazzo and Eugenio Ragazzi and Francesco Visioli},
Rapid Determination of Total Tryptophan in Yoghurt by Ultra High Performance Liquid Chromatography with Fluorescence Detection
A rapid chromatographic method for TRP determination in yoghurt, by ultra high performance liquid chromatography on a reversed-phase column with fluorescence detection, successfully applied to commercial yoghurts from different animal species.
Determination of the levels of tryptophan and 12 metabolites in milk by liquid chromatography-tandem mass spectrometry with the QuEChERS method.
The developed method to detect levels of tryptophan and metabolites in milk can provide a new reference for evaluation of milk and showed that different types of processed milk could be distinguished clearly according to the method used here.
Development of Functional Dairy Foods
There has been a growing interest on functional foods, markedly recognized as being able to provide additional benefits on health promotion, wellbeing maintenance, and disease prevention. Based on
Kefir: The Champagne of Fermented Beverages
К вопросу о качестве и гигиенической безопасности кисломолочных продуктов (обзорная статья)
Introduction. The article presents data on the role of milk and dairy products, including fermented milk products, in the human diet and reflects their important role in providing the body with
Study of starter cultures in biotechnology of medical and preventive nutrition products
The article presents the results of research on the quality of Lavitol – B premix in accordance with the requirements of regulatory and technical documentation, two versions of starter cultures with
Voltammetric carbon nanotubes based sensor for determination of tryptophan in the milk sample
In this research, functionalized carbon nanotubes were employed to modify a glassy carbon electrode (F-MWCNT/GCE). Several techniques including Fourier Transform Infrared Spectroscopy, scanning


Tryptophan metabolism, from nutrition to potential therapeutic applications
The present review discusses the major functions of tryptophan and its role in the regulation of growth, mood, behavior and immune responses with regard to the low availability of this amino acid and the competition between tissues and metabolic pathways for tryPTophan utilization.
Factors Influencing Biogenic Amines Accumulation in Dairy Products
In this review, all those elaboration and processing technological aspects affecting BA biosynthesis and accumulation in dairy foods are reported, which should lead to a reduction in their incidence in milk products.
Presence of kynurenic acid in food and honeybee products
Evidence is provided that KYNA is a constituent of food and that it can be easily absorbed from the digestive system and in conclusion, the presence of KYNA in food and honeybee products was investigated.
Milk, dairy products, and their functional effects in humans: a narrative review of recent evidence.
Although the available evidence is not conclusive, some studies suggest that milk and its derivatives might actually be beneficial to some population segments, and their use within a balanced diet should be considered in the absence of clear contraindications.
Effects and side effects associated with the non-nutritional use of tryptophan by humans.
Over 5 decades, L-tryptophan has been taken as a supplement and as an adjunct to medications with occasional modest, short-lived side effects, but the database is small and largely anecdotal.
Very low intakes of N-3 fatty acids incorporated into bovine milk reduce plasma triacylglycerol and increase HDL-cholesterol concentrations in healthy subjects.
The intake of a milk preparation providing low amounts of EPA+DHA to healthy individuals led to marked increases of N-3 fatty acids and vitamin E in plasma and in associated favourable changes in HDL and TG.
Disturbed tryptophan metabolism in cardiovascular disease.
The review leads to a novel framework for successful therapeutic modification of several cardinal pathophysiological processes leading to adverse cardiovascular outcome, including TRP breakdown and related complex mechanisms on the prognosis and individual course of CVD.
Milk kefir: composition, microbial cultures, biological activities, and related products
Kefir may act as a matrix in the effective delivery of probiotic microorganisms in different types of products and the presence of kefir’s exopolysaccharides, known as keFiran, which has biological activity, certainly adds value to products.
Changes in structures of milk proteins upon photo-oxidation.
Changes at the tertiary protein structure level were observed after photo-oxidation of the globular proteins, where tryptophan fluorescence emission indicated unfolding of alpha-lactalbumin and beta-lacticoglobulin, whereas lactoferrin achieved a more compact tertiary structure.