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Metabolites
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Bioactive Compounds in Animal Nutrition Resources and Animal By-Products
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Bioactive Compounds in Animal Nutrition Resources and Animal By-Products

A special issue of Metabolites (ISSN 2218-1989). This special issue belongs to the section "Animal Metabolism".

Deadline for manuscript submissions: closed (15 February 2025) | Viewed by 7646

Special Issue Editors

Dr. Claudia Delgadillo Puga

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Guest Editor
Animal Nutrition Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, México
Interests: bioactive compounds in conventional and unconventional resources for animal feed; establishing their relationship on the functional quality of meat, milk, and derivatives; evaluation of nutraceuticals, functional foods, pharmacodynamic exploration (biochemical and physiological) of bioactive compounds of plants and foods; for prevention or intervention on metabolic abnormalities in obesity, murine models, and clinical trials
Dr. Mario Cuchillo Hilario

E-Mail Website
Guest Editor
Animal Nutrition Department，Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, México
Interests: evaluation of bioactive compounds present in foods of animal origin and their impact on human health and nutrition; evaluation of forage resources available for animal feeding and nutrition

Special Issue Information

Dear Colleagues,

Conventional and non-conventional resources for animal nutrition devoted to feed either monogastric or ruminant animals contain a variety of metabolites that exhibit a wide range of biological activities. Bioactive compounds are often investigated for their antioxidant, anti-inflammatory, immunomodulatory, hypoglycemic, anti-hypercholesterolemic, anti-hypertensive, anti-platelet, anti-apoptotic, anti-nociceptive, antibacterial, antiviral, anticancer, hepatoprotective, or neuroprotective properties, among others. Additionally, the use of complete plants, plant fractions, seeds, pods, leaves, flowers, grains, roots, and their corresponding extracts; as well as oils, flours, proteins, polysaccharides, or purified chemical compounds in the diet of animals is under increasing interest. This Special Issue is devoted to investigate the “sources of bioactive compounds in animal nutrition” and the feasible implications on animal health and animal products quality as milk, meat, egg, and others, and their by-products with emphasis on biochemistry, biological function, and molecular mechanisms of bioactive compounds on animal and consumer health. The use of fishmeal, fish oils, insects, crustaceans, aquatic plants, seafood, microalgae, macroalgae, seaweed, and marine invertebrates such as crabs, mollusks, and echinoderms and related sources of conventional and non-conventional sources for animal nutrition is also under consideration. Both reviews and original articles will be considered. 

Dr. Claudia Delgadillo Puga
Dr. Mario Cuchillo Hilario
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metabolites is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • alternative sources
  • animal nutrition
  • bioactive compounds
  • metabolites
  • animal products
  • consumer health

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Published Papers (4 papers)

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Research

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18 pages, 1192 KiB  
Article
Effects of Acorns on Meat Quality and Lipid Metabolism-Related Gene Expression in Muscle Tissues of Yuxi Black Pigs
by Zhe Sun, Yadi Chang, Luyao Huang, Siyuan An, Dongyang Liu, Jinzhou Zhang and Zhiguo Miao
Metabolites 2024, 14(11), 578; https://doi.org/10.3390/metabo14110578 - 26 Oct 2024
Cited by 2 | Viewed by 1052
Abstract
Objectives: The aim of this study was to investigate the effects of acorn diets on the composition of fatty acid (FA) and the intramuscular fat (IMF) content in Yuxi black pigs. Methods: Ninety Yuxi black pigs with similar body weight (99.60 ± 2.32 [...] Read more.
Objectives: The aim of this study was to investigate the effects of acorn diets on the composition of fatty acid (FA) and the intramuscular fat (IMF) content in Yuxi black pigs. Methods: Ninety Yuxi black pigs with similar body weight (99.60 ± 2.32 kg) were randomly divided into five groups. The control group was fed a basal diet, and the AD20, AD30, AD40, and AD50 groups were fed experimental diets which contained 20%, 30%, 40%, and 50% acorns, respectively. The feeding experiment lasted for 120 days. Results: The results showed that compared with the control group, the content of SFA in longissimus dorsi and biceps femoris tissues in the AD30 group decreased by 8.57% and 20.10%, and the content of MUFA increased by 5.40% and 15.83%, respectively, while the PUFA content of biceps femoris increased by 5.40% (p < 0.05). Meanwhile, the IMF content of the AD30 group was significantly higher than that of the control group in the longissimus dorsi and biceps femoris. In addition, the mRNA expression levels of the ATGL, PPARγ, and FABP4 genes in longissimus dorsi (p < 0.05) were up-regulated, and HSL were down-regulated (p < 0.05) in the AD30 group. In the biceps femoris of the AD30 group, it was observed that the expression levels of the ACC and FAS genes were up-regulated (p < 0.05), while HSL and ATGL genes were down-regulated (p < 0.05). Conclusions: These results demonstrated that the addition of appropriate amounts of acorn to the diet (a 30% acorn diet) could improve the nutritional value of pork. Full article
(This article belongs to the Special Issue Bioactive Compounds in Animal Nutrition Resources and Animal By-Products)
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13 pages, 5623 KiB  
Article
Unveiling the Metabolic Trajectory of Pig Feces Across Different Ages and Senescence
by Chuanmin Qiao, Chengzhong Liu, Ruipei Ding, Shumei Wang and Maozhang He
Metabolites 2024, 14(10), 558; https://doi.org/10.3390/metabo14100558 - 17 Oct 2024
Viewed by 1328
Abstract
Porcine models are increasingly recognized for their similarities to humans and have been utilized in disease modeling and organ grafting research. While extensive metabolomics studies have been conducted in swine, primarily focusing on conventional cohorts or specific animal models, the composition and functions [...] Read more.
Porcine models are increasingly recognized for their similarities to humans and have been utilized in disease modeling and organ grafting research. While extensive metabolomics studies have been conducted in swine, primarily focusing on conventional cohorts or specific animal models, the composition and functions of fecal metabolites in pigs across different age groups—particularly in the elderly—remain inadequately understood. In this study, an untargeted metabolomics approach was employed to analyze the fecal metabolomes of pigs at three distinct age stages: young (one year), middle-aged (four years), and elderly (eight years). The objective was to elucidate age-associated changes in metabolite composition and functionality under standardized rearing conditions. The untargeted metabolomic analysis revealed a diverse array of age-related metabolites. Notably, L-methionine sulfoxide levels were found to increase with age, whereas cytidine-5-monophosphate levels exhibited a gradual decline throughout the aging process. These metabolites demonstrated alterations across various biological pathways, including energy metabolism, pyrimidine metabolism, lipid metabolism, and amino acid metabolism. Collectively, the identified key metabolites, such as L-methionine sulfoxide and Cholecalciferol, may serve as potential biomarkers of senescence, providing valuable insights into the mechanistic understanding of aging in pigs. Full article
(This article belongs to the Special Issue Bioactive Compounds in Animal Nutrition Resources and Animal By-Products)
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23 pages, 2920 KiB  
Article
Physicochemical Characterization of Moroccan Honey Varieties from the Fez-Meknes Region and Their Antioxidant and Antibacterial Properties
by Atika Ailli, Khalid Zibouh, Brahim Eddamsyry, Aziz Drioiche, Dounia Fetjah, Fatima Zahra Ayyad, Ramzi A. Mothana, Mohammed F. Hawwal, Mohamed Radi, Redouane Tarik, Abdelhakim Elomri, Aicha Mouradi and Touriya Zair
Metabolites 2024, 14(7), 364; https://doi.org/10.3390/metabo14070364 - 27 Jun 2024
Cited by 3 | Viewed by 1636
Abstract
Honey, with its varied and extensive characteristics, is a complex and diverse biological substance that has been used since ancient times. The aim of this study is to thoroughly characterize the physicochemical, phytochemical, and biological properties of four floral honey varieties from the [...] Read more.
Honey, with its varied and extensive characteristics, is a complex and diverse biological substance that has been used since ancient times. The aim of this study is to thoroughly characterize the physicochemical, phytochemical, and biological properties of four floral honey varieties from the Fez-Meknes region in Morocco, with the goal of promoting the valorization of Moroccan honey in skincare and cosmetic products. The analyses of their physicochemical characteristics encompass various parameters such as pH, acidity, density, water content, Brix index, conductivity, ash content, hydroxymethylfurfural (HMF) content, and color. The levels of polyphenols range from 22.1 ± 0.4 to 69.3 ± 0.17 mg GAE/100 g of honey, measured using the Folin–Ciocalteu method for polyphenol quantification. Additionally, the estimation of flavonoid quantities in 100 g of honey, conducted using the aluminum trichloride method, reveals values ranging from 3.6 ± 0.2 to 7.2 ± 0.6 mg QE. Furthermore, it is noteworthy that honey exhibits high levels of glucose and relatively low concentrations of proteins. The quantitative evaluation of antioxidant effects, carried out through the 2,2-diphenyl-1-picrylhydrazyl free-radical-scavenging method and the ferric-reducing antioxidant power (FRAP) method, highlights the strong antioxidant capacity of multifloral honey, characterized by low inhibitory concentration values (IC50 = 30.43 mg/mL and EC50 = 16.06 mg/mL). Moreover, all honey varieties demonstrate antibacterial and antifungal properties, with multifloral honey standing out for its particularly pronounced antimicrobial activity. The correlation analyses between phytochemical composition and antioxidant and antibacterial activities reveal an inverse relationship between polyphenols and IC50 (DPPH) and EC50 (FRAP) concentrations of honey. The correlation coefficients are established at R2 = −0.97 and R2 = −0.99, respectively. Additionally, a significant negative correlation is observed between polyphenols, flavonoids, and antifungal power (R2 = −0.95 and R2 = −0.96). In parallel, a marked positive correlation is highlighted between antifungal efficacy, DPPH antioxidant activity (R2 = 0.95), and FRAP (R2 = 0.92). These results underscore the crucial importance of phytochemical components in the beneficial properties of honey, meeting international quality standards. Consequently, honey could serve as a natural alternative to synthetic additives. Full article
(This article belongs to the Special Issue Bioactive Compounds in Animal Nutrition Resources and Animal By-Products)
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Review

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45 pages, 1381 KiB  
Review
Animal Food Products to Support Human Nutrition and to Boost Human Health: The Potential of Feedstuffs Resources and Their Metabolites as Health-Promoters
by Mario Cuchillo-Hilario, Mareli-Itzel Fournier-Ramírez, Margarita Díaz Martínez, Sara Montaño Benavides, María-Concepción Calvo-Carrillo, Silvia Carrillo Domínguez, María-Elena Carranco-Jáuregui, Elizabeth Hernández-Rodríguez, Patricia Mora-Pérez, Yesica R. Cruz-Martínez and Claudia Delgadillo-Puga
Metabolites 2024, 14(9), 496; https://doi.org/10.3390/metabo14090496 - 13 Sep 2024
Viewed by 2357
Abstract
Recent attention has been given to animal feeding and its impact on human nutrition. Animal feeding is essential for meeting human dietary needs, making it a subject of significant interest and investigation. This review seeks to outline the current understanding of this disciplinary [...] Read more.
Recent attention has been given to animal feeding and its impact on human nutrition. Animal feeding is essential for meeting human dietary needs, making it a subject of significant interest and investigation. This review seeks to outline the current understanding of this disciplinary area, with a focus on key research areas and their potential implications. The initial part of the paper discusses the importance of animal feed resources and recognizes their crucial role in guaranteeing sufficient nutrition for both humans and animals. Furthermore, we analyzed the categorization of animal feeds based on the guidelines established by the National Research Council. This approach offers a valuable structure for comprehending and classifying diverse types of animal feed. Through an examination of this classification, we gain an understanding of the composition and nutritional content of various feedstuffs. We discuss the major categories of metabolites found in animal feed and their impact on animal nutrition, as well as their potential health advantages for humans. Flavonoids, polyphenols, tannins, terpenoids, vitamins, antioxidants, alkaloids, and essential oils are the primary focus of the examination. Moreover, we analyzed their possible transference into animal products, and later we observed their occurrence in foods from animal sources. Finally, we discuss their potential to promote human health. This review offers an understanding of the connections among the major metabolites found in feedstuffs, their occurrence in animal products, and their possible impact on the health of both animals and humans. Full article
(This article belongs to the Special Issue Bioactive Compounds in Animal Nutrition Resources and Animal By-Products)
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