• Không có kết quả nào được tìm thấy

Technological Innovation in the Olive Oil Production Chain

N/A
N/A
Nguyễn Gia Hào

Academic year: 2023

Chia sẻ "Technological Innovation in the Olive Oil Production Chain"

Copied!
80
0
0

Loading.... (view fulltext now)

Văn bản

Does the introduction of ultrasound into the extra virgin olive oil extraction process improve the income of the olive presses? Finally, I would like to thank the publishing house who gave me great professionalism in the creation of the book.

Technological innovation

How is the health of Italian extra virgin olive oil, one of the flags of the Made in Italy brand. According to the tables of the CREA Research Center for Food and Nutrition, an extra virgin olive oil contains only about 14% saturated fats (which intake should be kept low).

Introduction

The conventional extraction method of extra virgin olive oil (EVOO) consists of three main processes, namely crushing, malaxation and centrifugation [1]. Recent studies that have used emerging technologies for olive oil extraction are summarized in Table 1.

Ultrasound applications in olive oil extraction

PEF applications in olive oil extraction

Microwave applications in olive oil extraction

High-power ultrasound application in olive oil extraction was first performed by Jiménez et al. Enrichment of olive oil with main phenols in olive leaves using ultrasound has been studied by researchers [34, 35]. 1] used an ultrasound bath in olive oil extraction to find optimal ultrasound-assisted olive oil extraction conditions based on maximum oil yield and minimum free acidity.

The effect of microwave-assisted solvent extraction at two different radiation power values ​​(170 and 510 W) combined with acetic acid on olive oil yield and physicochemical properties was investigated by Kadi et al. The possibility of combining megasonic treatment and microwave treatment in a continuous olive oil extraction system to improve olive oil extractability was investigated by Leone et al.

Conclusions

Improving mechanical extraction of olive oil: new technologies, process efficiency and extra virgin olive oil quality. A review of emerging techniques in virgin olive oil extraction process: Strategies in the development of innovative plants. Work on the development of innovative ultrasound equipment for the extraction of olive oil.

Ultrasound in extra virgin olive oil extraction process Improves the income of the olive millers. The first technology for the simultaneous increase of yield and quality of the extra-pure olive oil.

The first technology for the simultaneous increment of yield and quality of the extra-virgin olive oil

The growth of the olive milling business is linked to the development of its innovative capacity [1]. In the last 20 years we have therefore witnessed a "professional metamorphosis" of the role of the olive miller. In the case of extraction of extra virgin olive oil, new technologies must ensure the simultaneous achievement of two different effects: a.

What strategies can be applied to design the plant that will most likely contribute to improving the process. The introduction of ultrasound in the extraction process of extra virgin olive oil can improve the income of the olive presses.

The introduction of ultrasound in extra-virgin olive oil extraction process can improve the income of the olive millers

The use of the pitting machine, which today is not widespread due to the known yield losses, can be encouraged by the use of ultrasounds, which have a positive effect on oil extraction. Extracting the pith before the product enters the processing line has the advantage of increasing plant capacity and improving energy efficiency, and offers the possibility of deploying pitted pomace to more profitable uses. The implementation of ultrasound in the olive oil extraction process is characterized by a high level of technological maturity (TRL, technological readiness level) 8, which corresponds to the development of the system and its validation on a real scale.

Conclusion

The introduction of ultrasound in the extraction process of extra virgin olive oil can improve the income of oil farmers. The process can improve the income of oil farmers. The introduction of ultrasound in the extraction of extra virgin olive oil is the first technology to simultaneously increase the yield and quality of the product. Impact of crushing system: Phenolic content of virgin olive oil produced from whole paste and pitted paste.

Influence of different centrifugal extraction systems on the antioxidant content and stability of virgin olive oil. New developments in the development of innovative installations for the extraction of virgin olive oil: a look back to see the future.

Classification and allure of phenoplast compounds

  • Phenolic acids
  • Phenolic alcohols
  • Derivatives of phenoplast alcohols
  • Glycosides
  • Ligstroside
  • Lignans
  • Flavonoids
  • Other phenols

Glycoside compounds were also found in olive oil, but only in trace amounts another class of compounds, hydroxyisochromans, was identified by [7]. The phenol content in olive baking apple, which partners in amoebic admixture with the aglycone atom of oleuropein, is released by enzymes during malaxation of the olive. Many alcoholic phenols are found in olive oil, for example (p-hydroxyphenyl)ethyl alcohol (p-HPEA, tyrosol), (3,4-dihydroxyphenyl)ethanol (3,4 DHPEA, hydroxytyrosol), and homovanillyl alcohol.

Also, some components of derivatives of phenoplast alcohols in olive oil appeared, for example, 4-(acetoxyethyl)-1,2-dihydroxybenzene, hydroxytyrosol, organic compound of methyl group malate. Oleuropein is the main compound in olive oil that it consists of (an organic compound of hydroxytyrosol with β-glucosylated elenolic acid).

Antioxidant activity of phenolic compounds

One access involves barometer of the inhibition of aerophilic lowering of Associate in Nursing oil or archetypal substance, such as methyl accumulation linoleate. The aftereffect of substrate can be attributed to the athletic access of the unsaturated affectionate and aggregate of the lipid arrangement on the dynamics and apparatus of the antioxidative action of the phenols. Hydroxytyrosol and caffeic acerbic were beginning to be a very capable antioxidants in advertising to BHT, already the acumen and keeping ability of the oil that these additives are investigated.

Gas absorption adequacy (ORAC) of oil was advised by Ninfali et al., [13] using a spectrofluorometric address that measures the caution of oil phenoplastic substances in b-phycoerythrin adulteration compared to Trolox. The identification of lignans as inhibitory sites upstream of the oil phenoplast atom is also of advanced interest.

The antimicrobial result of phenoplast compounds

A review of human intervention studies showed that olive polyphenols (eg, hydroxytyrosol and oleuropein) reduced plasma levels of oxidized LDL and positively affected several biomarkers of oxidative damage (Visioli and Galli, 2002). In-vitro and ex-vivo models indisputably demonstrate that oil phenolics accept an inhibitory background higher than vitamin E on lipid and deoxyribonucleic acerbic oxidation. In addition, oleic phenoplast compounds inhibited platelet-induced docking and the addition of antioxidant enhancer inhibitor mRNA archetype appeared [21].

Owen et al. find that in beastly cellular and metabolic studies, lignans acquire extremely important biological effects, which may have their effect as chemopreventive agents (Visioli et al., 2004).

Phenolic compounds in the prevention of atherosclerosis

The antibacterial effect of olive artefact is accompanied by the presence of selected styles of decarboxymethyl elenoic acerbic, such as free, dialdehyde, mellow on tyrosol and bordering on hydroxytyrosol. The antibacterial action of these substances comes from their dialdehyde structure, which is similar to the automated antiseptics glutaraldehyde and o-phthalaldehyde [27]. Oleuropein and hydroxytyrosol adopt antimicrobial activity on the amount of ATCC and analytical bacillus strains [28].

The abstraction carried out by Medina-Martínez et al., [29] summarized that the addition of 400 μg/ml of hydroxytyrosol in different media decisively adapted the ambit of the amplification of E. phenolic compounds, thus delaying the onset of the oxidative process, preserving endogenous oxidentols (5.9, antioxidants) endogenous (9.9, 9.1).

Anti-inflammatory activity of phenoplast compounds

In an LDL sample, CuSO4-induced vitamin E oxidation was prevented by the addition of hydroxytyrosol or the secondary compounds of oleuropein; this effect was linearly correlated with hydroxytyrosol concentration. In LDL that has not been treated with polyphenolic compounds, these lipid peroxides are formed at the same time as the vitamin E level is lowered.

Phenolic compounds as opposing cancer

Variability of phenolic compounds of virgin olive oil in a separating progeny of a single cross in Olea europaea L. Evolution of small polar compounds and antioxidant capacity during storage of bottled extra virgin olive oil. Phenolic compounds in olive oil destined for refining: Formation of 4-ethylphenol during storage of olive paste.

Phenolic composition of olive oil: structure, biological activity and beneficial effects on human health. Inhibition of peroxynitrite-dependent DNA base modification and tyrosine nitration by the antioxidant hydroxytyrosol derived from extra virgin olive oil.

Material and methods 1 Chemicals and reagents

  • Animals
  • Mast cell isolation and purification
  • General protocol
  • β-Hexosaminidase assay
  • Light microscopy and morphometry
  • Transmission electron microscopy
  • Statistical analysis

In this context, exploring the interactions of mast cells with molecules capable of modulating mediator release from cellular granules is a promising area for the treatment of mast cell-mediated diseases. In vitro and in vivo studies have shown that some herbal products with antioxidant properties inhibit mast cell activation induced by immune and non-immune secretagogues [11-14]. However, no studies have been published on the effects of these molecules on mast cell degranulation.

The ability of mast cells to exclude trypan blue and the amount of β-hexosaminidase in the supernatant demonstrated the viability of mast cells. Karnovsky's fixative (2% formaldehyde, freshly prepared from paraformaldehyde, 2.5% glutaraldehyde, 0.025% CaCl2, 0.1 M cacodylate buffer, pH 7.4) was used to fix mast cells.

Results and discussion

The calcium ionophore A23187-induced effects were inhibited by preincubation of mast cells with hydroxy-tyrosol (100 μM) and oleuropein (10, 50, and 100 μM). Effect of varying concentrations of hydroxytyrosol and oleuropein on the concanavalin A-, compound 48/80-, and calcium ionophore A23187-induced β-hexosaminidase release from peritoneal mast cells. Characteristic mast cells stimulated with concanavalin A, compound 48/80, and calcium ionophore A23187 are shown in Figure 5B–D , respectively.

Figure 5E–G shows mast cells treated with 100 μM hydroxytyrosol 10 min before challenge with concavalin A, compound 48/80, and calcium ionophore A23187, respectively. Figure 6E–G shows mast cells treated with 100 μM hydroxytyrosol 10 min before challenge with concavalin A, compound 48/80, and calcium ionophore A23187, respectively.

Conclusions

Role of mast cells in allergic and non-allergic immune responses: Comparison of human and murine data. The two faces of mast cells in food allergy and allergic asthma: The possible concept of Yin Yang. Inhibitory effect of carotenoids on the degranulation of mast cells via suppression of antigen-induced aggregation of high affinity IgE receptor.

Oscillations in free cytosolic calcium during IgE-mediated stimulation distinguish human basophils from human mast cells. Mast cells have distinct secretory granule subsets whose exocytosis is regulated by different SNARE isoforms.

Hình ảnh

Table 1 shows the economic comparison between the traditional system and  the innovative system with ultrasounds

Tài liệu tham khảo

Tài liệu liên quan

Contents Preface XIII Chapter 1 1 Introductory Chapter: Accelerators and Colliders by Ozan Artun Chapter 2 7 Investigation of the Production of Medical Ir-192 Used in Cancer