Characterization of broiler cake and broiler litter, the by-products of two management practices

Weaning stress can elicit changes in the metabolic, hormone and immune systems of pigs and interact with prolonged disruptions stemming from maternal immune activation (MIA) during gestation. The present study advances the characterization of the combined effects of weaning stress and MIA on blood chemistry, immune and hormone indicators that inform on the health of pigs. Three-week-old female and male offspring of control gilts or gilts infected with the porcine reproductive and respiratory syndrome virus were allocated to weaned or nursed groups. The anion gap and bilirubin profiles suggest that MIA enhances tolerance to the effects of weaning stress. Interleukin 1 beta and interleukin 2 were highest among weaned MIA females, and cortisol was higher among weaned relative to nursed pigs across sexes. Canonical discriminant analysis demonstrated that weaned and nursed pigs have distinct chemistry profiles, whereas MIA and control pigs have distinct cytokine profiles. The results from this study can guide management practices that recognize the effects of the interaction between MIA and weaning stress on the performance and health of pigs.

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Analytical Characterization of Water-Soluble Constituents in Olive-Derived By-Products

Foods ◽

10.3390/foods10061299 ◽

2021 ◽

Vol 10 (6) ◽

pp. 1299

Author(s):

Pablo Doménech ◽

Aleta Duque ◽

Isabel Higueras ◽

José Luis Fernández ◽

Paloma Manzanares

Keyword(s):

Olive Tree ◽

Mediterranean Area ◽

Water Soluble ◽

Olive Pomace ◽

Olive Leaves ◽

Olive Stone ◽

Olive Trees ◽

Tree Pruning ◽

By Products

Olive trees constitute one of the largest agroindustries in the Mediterranean area, and their cultivation generates a diverse pool of biomass by-products such as olive tree pruning (OTP), olive leaves (OL), olive stone (OS), and extracted olive pomace (EOP). These lignocellulosic materials have varying compositions and potential utilization strategies within a biorefinery context. The aim of this work was to carry out an integral analysis of the aqueous extractives fraction of these biomasses. Several analytical methods were applied in order to fully characterize this fraction to varying extents: a mass closure of >80% was reached for EOP, >76% for OTP, >65% for OS, and >52% for OL. Among the compounds detected, xylooligosaccharides, mannitol, 3,4-dihydroxyphenylglycol, and hydroxytyrosol were noted as potential enhancers of the valorization of said by-products. The extraction of these compounds is expected to be more favorable for OTP, OL, and EOP, given their high extractives content, and is compatible with other utilization strategies such as the bioconversion of the lignocellulosic fraction into biofuels and bioproducts.

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Extraction and Mass Spectrometric Characterization of Terpenes Recovered from Olive Leaves Using a New Adsorbent-Assisted Supercritical CO2 Process

Foods ◽

10.3390/foods10061301 ◽

2021 ◽

Vol 10 (6) ◽

pp. 1301

Author(s):

Zully J. Suárez Montenegro ◽

Gerardo Álvarez-Rivera ◽

Jose A. Mendiola ◽

Elena Ibáñez ◽

Alejandro Cifuentes

Keyword(s):

Aluminum Oxide ◽

Silica Gel ◽

Supercritical Co2 ◽

Olive Leaves ◽

Fractionation Process ◽

Selective Enrichment ◽

Adsorption Desorption ◽

First Time ◽

By Products

This work reports the use of GC-QTOF-MS to obtain a deep characterization of terpenoid compounds recovered from olive leaves, which is one of the largest by-products generated by the olive oil industry. This work includes an innovative supercritical CO2 fractionation process based on the online coupling of supercritical fluid extraction (SFE) and dynamic adsorption/desorption for the selective enrichment of terpenoids in the different olive leaves extracts. The selectivity of different commercial adsorbents such as silica gel, zeolite, and aluminum oxide was evaluated toward the different terpene families present in olive leaves. Operating at 30 MPa and 60 °C, an adsorbent-assisted fractionation was carried out every 20 min for a total time of 120 min. For the first time, GC-QTOF-MS allowed the identification of 40 terpenoids in olive leaves. The GC-QTOF-MS results indicate that silica gel is a suitable adsorbent to partially retain polyunsaturated C10 and C15 terpenes. In addition, aluminum oxide increases C20 recoveries, whereas crystalline zeolites favor C30 terpenes recoveries. The different healthy properties that have been described for terpenoids makes the current SFE-GC-QTOF-MS process especially interesting and suitable for their revalorization.

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Acoustic Characterization of Some Steel Industry Waste Materials

Applied Sciences ◽

10.3390/app11135924 ◽

2021 ◽

Vol 11 (13) ◽

pp. 5924

Author(s):

Elisa Levi ◽

Simona Sgarbi ◽

Edoardo Alessio Piana

Keyword(s):

Thermal Characteristic ◽

Environmental Benefits ◽

Acoustic Properties ◽

Physical Parameters ◽

Industry Waste ◽

Acoustic Characterization ◽

Minimization Procedure ◽

The Difference ◽

By Products

From a circular economy perspective, the acoustic characterization of steelwork by-products is a topic worth investigating, especially because little or no literature can be found on this subject. The possibility to reuse and add value to a large amount of this kind of waste material can lead to significant economic and environmental benefits. Once properly analyzed and optimized, these by-products can become a valuable alternative to conventional materials for noise control applications. The main acoustic properties of these materials can be investigated by means of a four-microphone impedance tube. Through an inverse technique, it is then possible to derive some non-acoustic properties of interest, useful to physically characterize the structure of the materials. The inverse method adopted in this paper is founded on the Johnson–Champoux–Allard model and uses a standard minimization procedure based on the difference between the sound absorption coefficients obtained experimentally and predicted by the Johnson–Champoux–Allard model. The results obtained are consistent with other literature data for similar materials. The knowledge of the physical parameters retrieved applying this technique (porosity, airflow resistivity, tortuosity, viscous and thermal characteristic length) is fundamental for the acoustic optimization of the porous materials in the case of future applications.

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Valorisation of fruit by-products: Production characterization of pectins from fruit peels

Food and Bioproducts Processing ◽

10.1016/j.fbp.2019.03.009 ◽

2019 ◽

Vol 115 ◽

pp. 126-133 ◽

Cited By ~ 19

Author(s):

Melih Güzel ◽

Özlem Akpınar

Keyword(s):

By Products

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Characterization of Mehsana Buffaloes in India

Animal Genetic Resources Information ◽

10.1017/s101423390000136x ◽

2000 ◽

Vol 28 ◽

pp. 53-62 ◽

Cited By ~ 5

Author(s):

R.K. Pundir ◽

G. Sahana ◽

N. K. Navani ◽

P.K. Jain ◽

D.V. Singh ◽

...

Keyword(s):

Management Practices ◽

Animal Husbandry ◽

Progeny Testing ◽

Health Coverage ◽

Service Period ◽

Breed Improvement ◽

Microsatellite Dna Marker ◽

North Gujarat ◽

Reproductive Characters

SummaryMehsana buffalo is distributed in Mehsana, Banaskantha and Sabarkantha districts of North Gujarat in India. The animals are reared for milk production. The management practices in the breeding tract were studied. The physical, production and reproductive characters were recorded. The Dudhsagar Research and Development Association located in Mehsana district has undertaken breed improvement programmes in farmers'herds by running field progeny testing and providing other animal husbandry services like artificial insemination, health coverage, etc. This has resultedin the improvement in the reproductive performance as is evident from the decreasein the average first service period by 74 days and the average first calving interval by 103 days from 1989 to 1997. Microsatellite DNA marker analysis was carried out on 25 Mehsana buffalo DNA samples using seven markers for genetic characterization of the breed. Number of alleles at different loci ranged from four to seven and heterozygosity ranged from 0.40 to 0.92.

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