Ulva spp. as a natural source of phenylalanine and tryptophan to be used as anxiolytics in fish farming

Calheiros, Ana Carolina; Reis, Renata Perpetuo; Castelar, Beatriz; Cavalcanti, Diana Negrão; Teixeira, Valéria Laneuville

doi:10.1016/j.aquaculture.2019.05.028

Cited by 11 publications

(4 citation statements)

References 78 publications

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“…162 Several studies have established the role of dietary Trp in stimulating growth and immunity and decreasing anxiety in fish species. [163][164][165][166] Trp administration is well tolerated by Rhesus monkey (Macaca mulatta) and inhibits self-injurious behaviour in males with a history of such behaviour. 167 Clearly the safety of Trp in many other species requires assessment.…”

Section: Toxicity Aspectsmentioning

confidence: 99%

Species Differences in Tryptophan Metabolism and Disposition

Badawy

2022

Int J�Tryptophan�Res

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Major species differences in tryptophan (Trp) metabolism and disposition exist with important physiological, functional and toxicity implications. Unlike mammalian and other species in which plasma Trp exists largely bound to albumin, teleosts and other aquatic species possess little or no albumin, such that Trp entry into their tissues is not hampered, neither is that of environmental chemicals and toxins, hence the need for strict measures to safeguard their aquatic environments. In species sensitive to toxicity of excess Trp, hepatic Trp 2,3-dioxygenase (TDO) lacks the free apoenzyme and its glucocorticoid induction mechanism. These species, which are largely herbivorous, however, dispose of Trp more rapidly and their TDO is activated by smaller doses of Trp than Trp-tolerant species. In general, sensitive species may possess a higher indoleamine 2,3-dioxygenase (IDO) activity which equips them to resist immune insults up to a point. Of the enzymes of the kynurenine pathway beyond TDO and IDO, 2-amino-3-carboxymuconic acid-6-semialdehyde decarboxylase (ACMSD) determines the extent of progress of the pathway towards NAD+ synthesis and its activity varies across species, with the domestic cat ( Felis catus) being the leading species possessing the highest activity, hence its inability to utilise Trp for NAD+ synthesis. The paucity of current knowledge of Trp metabolism and disposition in wild carnivores, invertebrates and many other animal species described here underscores the need for further studies of the physiology of these species and its interaction with Trp metabolism.

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Section: Toxicity Aspectsmentioning

confidence: 99%

Species Differences in Tryptophan Metabolism and Disposition

Badawy

2022

Int J�Tryptophan�Res

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“…rich in minerals, vitamins and essential fatty acids, especially long-chained polyunsaturated fatty acids, which are not easily replaced by other food stuffs (Béné et al, 2015;Chan et al, 2019). Because of the limitation of fish supply, aquaculture is one of the best product to fill the gap between fish stock and demand (Calheiros et al, 2019). Of all the known farmed species, the tilapia is known for its easy adaptation to different environments, high growth rates and acceptance of different types of commercial feeds.…”

Section: Eissa Et Al 2021 396mentioning

confidence: 99%

Effects of partial substitution of fish meal with different levels of marine macroalgae species on growth indices and RNA/DNA ratio of hybrid red tilapia

Eissa¹

2021

Egypt. J. of Aquatic Biolo. and Fish.

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“…No reports about U. lactuca growing in Indonesia, but it is abundant in Sepanjang Beach Gunungkidul in October to January. U. lactuca is also rich in amino acids, proteins, vitamins, and a promising species for commercial uses (Calheiros et al, 2019). It has higher protein content than brown seaweed (Tiwari and Troy, 2015).…”

Section: Introductionmentioning

confidence: 99%

Effect of Cooking Methods on Nutritional Quality of Sea Lettuce (<I>Ulva lactuca</I>) Flakes

Sefrienda¹,

Jasmadi²,

Novianty³

et al. 2023

JIPK

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Highlight Research Proximate of Ulva lactuca after cooking treatments were analyzed. The cooking treatments carried out in this study were roasted and boiled-roasted Protein quality such as in-vitro digestibility, protein solubility, and amino acids composition of Ulva lactuca after cooking treatments were analyzed The result showed that boiled-roasted samples had the highest protein content, amino acid score and essential acid index, and predicted-protein efficiency ratio Abstract Plant-based protein has been increasingly demanded as a sustainable protein source. Sea lettuce (Ulva lactuca) is one of the potential sources as plant protein due to its high protein content. During processing, the sea lettuce is exposed to heat which might affect its nutrition, particularly the protein quality. This study aimed to evaluate two different cooking processes on the nutritional quality of the sea lettuce based on the proximate and protein quality analyses. The samples were raw, roasted, and boiled-roasted sea lettuce. All treatment using temperature 100°C. The protein quality was assessed by in-vitro protein digestibility, solubility, and amino acid profiles. The result showed that boiling treatment followed by roasting treatment had significantly higher protein content, amino acid score and essential amino acid index, and predicted-protein efficiency ratio compared with the value of roasting treatment only. It resulted in protein content of 18.87% (dry basis), amino acid score of 37.96%, essential amino acid index of 79.41% and predicted-protein efficiency ratio of 2.58. Therefore, boiling followed with roasting process is recommended to maintain the nutrition quality of sea lettuce.

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Ulva spp. as a natural source of phenylalanine and tryptophan to be used as anxiolytics in fish farming

Cited by 11 publications

References 78 publications

Species Differences in Tryptophan Metabolism and Disposition

Species Differences in Tryptophan Metabolism and Disposition

Effects of partial substitution of fish meal with different levels of marine macroalgae species on growth indices and RNA/DNA ratio of hybrid red tilapia

Effect of Cooking Methods on Nutritional Quality of Sea Lettuce (<I>Ulva lactuca</I>) Flakes

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