Converting avocado seeds into a ready to eat snack and analysing for persin and amygdalin

Permal, Rahul; Chia, Tim; Arena, Giada; Fleming, Cassandra L.; Chen, Jack; Chen, Tony; Chang, Wee Leong; Seale, Brent; Hamid, Nazimah; Kam, Rothman

doi:10.1016/j.foodchem.2022.134011

Cited by 8 publications

(7 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results obtained in this work were in the range of those obtained by Permal et al [ 52 ] for extruded avocado seed with 12.9 mg GAE/g. On the other hand, results of black mustard seed extracted with choline chloride:urea (1:2) DES, blended with 25% water, exhibited a TPC of 24.0 mg GAE/g under conditions of LSR = 10 mL/g, at 65 °C for 3 h [ 53 ].…”

Section: Resultssupporting

confidence: 86%

“…The maximum value was 16.20 mg TE/g AS, obtained at 50 °C, 180 min and 30% water content (experiment 11). This value was in the range of avocado seed after extrusion with a value of 15.4 mg/g [ 52 ]. Conversely, higher values of FRAP were obtained from avocado peel extracted with choline chloride:glycerol (1:3) with 30% water content, reaching a value of 84.5 mg TE/g avocado peel after being processed for 120 min at 50 °C [ 19 ].…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Valorization of Avocado Seed Wastes for Antioxidant Phenolics and Carbohydrates Recovery Using Deep Eutectic Solvents (DES)

Del-Castillo-Llamosas,

Rodríguez-Rebelo,

Rodríguez-Martínez

et al. 2023

Antioxidants

View full text Add to dashboard Cite

Avocado seeds represent the chief waste produced in avocado processing, leading not only to environmental problems regarding its elimination but to a loss of economic profitability. In fact, avocado seeds are known as interesting sources of bioactive compounds and carbohydrates, so their utilization may reduce the negative effect produced during the industrial manufacture of avocado-related products. In this sense, deep eutectic solvents (DES) are a novel greener alternative than organic solvents to extract bioactive polyphenols and carbohydrates. The study was based on a Box–Behnken experimental design to study the effect of three factors, temperature (40, 50, 60 °C), time (60, 120, 180 min) and water content (10, 30, 50% v/v) on the responses of total phenolic (TPC) and flavonoid content (TFC), antioxidant capacity (measured as ABTS and FRAP) and xylose content in the extract. The DES Choline chloride:glycerol (1:1) was used as solvent on avocado seed. Under optimal conditions, TPC: 19.71 mg GAE/g, TFC: 33.41 mg RE/g, ABTS: 20.91 mg TE/g, FRAP: 15.59 mg TE/g and xylose: 5.47 g/L were obtained. The tentative identification of eight phenolic compounds was assayed via HPLC-ESI. The carbohydrate content of the solid residue was also evaluated, and that solid was subjected to two different processing (delignification with DES and microwave-assisted autohydrolysis) to increase the glucan susceptibility to enzymes, and was also assayed reaching almost quantitative glucose yields. These results, added to the non-toxic, eco-friendly, and economic nature of DES, demonstrate that these solvents are an efficient alternative to organic solvents to recover phenolics and carbohydrates from food wastes.

show abstract

Section: Resultssupporting

confidence: 86%

Section: Resultsmentioning

confidence: 99%

Valorization of Avocado Seed Wastes for Antioxidant Phenolics and Carbohydrates Recovery Using Deep Eutectic Solvents (DES)

Del-Castillo-Llamosas,

Rodríguez-Rebelo,

Rodríguez-Martínez

et al. 2023

Antioxidants

View full text Add to dashboard Cite

show abstract

“…Utilizing agricultural waste, particularly avocado residues, in the optimized concentrations for feed formulations could be an intriguing strategy for cutting expenses while promoting sustainability and environmental welfare. However, it is important to mention that avocado wastes, particularly peels and seeds, contain persin (1.81 ± 0.35 mg persin/g avocado seed) [15]. This compound is an acetogenin formed from the production of long-chain fatty acids and has a similar structure to linoleic acid.…”

Section: Production Of Animal Feedmentioning

confidence: 99%

“…However, it is important to carry out the optimization of the concentration of the avocado wastes used in the formation of substrates and culture media due to the presence of persin in peels and seeds. Persin is a toxin contained in the idioblastic oil cells of avocado fruits and leaves and is believed to act as a natural insecticide and fungicide; hence, it could limit the growth and development of cultivated organisms [15]. In addition to this, like any organic material, avocado waste can be susceptible to contamination by competing microorganisms, molds, or pathogens.…”

Section: Avocado Waste As a Substratum For The Cultivation Of Mushroo...mentioning

confidence: 99%

“…This approach contributes to sustainable development, as it incorporates the principles of circular economy, promoting the efficient use of resources and reducing waste. The green valorization of avocado waste involves a process of extracting valuable compounds and materials from the avocado waste, promoting its reuse, and reintegration the avocado waste into the value [7,[14][15][16]. This approach helps mitigate the negative environmental impact associated with the disposal of avocado waste while creating economic opportunities by providing alternative sources of raw materials for value-added products.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Avocado Waste Biorefinery: Towards Sustainable Development

Sandoval-Contreras,

González Chávez,

Poonia

et al. 2023

Recycling

View full text Add to dashboard Cite

The increasing demand for avocado consumption has led to a vast generation of waste products. Despite the high nutritional value of avocados, the waste generated from their processing poses a significant environmental challenge. Therefore, the development of a sustainable approach to avocado waste management is a major concern. Biorefinery presents a promising approach to the valorization of avocado waste components, including the seed, peel, and pulp residues. This paper explores the potential of avocado waste biorefinery as a sustainable solution to produce bio-based products. Several approaches, including extraction, hydrolysis, fermentation, and biodegradation, to obtain valuable products such as starch, oil, fiber, and bioactive compounds for food or feed goods have been proposed. The review also highlights the approaches towards addressing challenges of energy security and climate change by utilizing avocado waste as a source to produce biofuels such as biogas, biodiesel, and bioethanol. In conclusion, the development of avocado waste biorefinery presents a promising avenue for sustainable development. This process can efficiently convert the avocado waste components into valuable bio-based products and clean energy sources, contributing to the attainment of a circular economy and a more sustainable future.

show abstract

Effective RhB Dye Removal Using Sustainable Natural Bioadsorbents Synthesized from Avocado Seed and Skin

Orozco,

Montiel,

Valencia

et al. 2024

Water Air Soil Pollut

View full text Add to dashboard Cite

Managing waste generated by the food industry is a pressing environmental challenge, and traditional disposal methods such as landfilling or incineration are no longer viable solutions. However, by recovering and valorizing waste in wastewater treatment, we can address the waste management issue and the energy-intensive nature of conventional treatment methods with processes compatible with renewable energy technologies. In this work, avocado skin and seed are valorized for their application in removing Rhodamine B (RhB) dye. Avocado skin (ASk) and seed (ASe) were recovered and recycled separately to develop natural bioadsorbents. Biomaterials were characterized by XRD, XPS, ICP-MS, ATR-FTIR spectroscopy, TGA, N2 adsorption/desorption, and SEM. The ASk and ASe bioadsorbents were employed to remove RhB at four experimental conditions: pH, RhB concentration, bioadsorbent concentration, and temperature. RhB removal was followed by UV–Vis spectroscopy. The results show that at pH 3, the highest percentages of dye removal are achieved, using ASk and ASe, with 88 and 92% removal, respectively. ASe bioadsorbent is more effective for removing RhB dye, reaching 92% after 4 h of contact with 2 g L−1 of bioadsorbent and at 30 °C. Experimental results better fit a pseudo-second-order kinetic model and the Langmuir adsorption model, with maximum adsorption capacities of 13.1240 and 17.9998 mg g−1 for ASk and ASe, respectively. The results show that natural bioadsorbents are suitable options for environmental remediation.

show abstract

Converting avocado seeds into a ready to eat snack and analysing for persin and amygdalin

Cited by 8 publications

References 37 publications

Valorization of Avocado Seed Wastes for Antioxidant Phenolics and Carbohydrates Recovery Using Deep Eutectic Solvents (DES)

Valorization of Avocado Seed Wastes for Antioxidant Phenolics and Carbohydrates Recovery Using Deep Eutectic Solvents (DES)

Avocado Waste Biorefinery: Towards Sustainable Development

Effective RhB Dye Removal Using Sustainable Natural Bioadsorbents Synthesized from Avocado Seed and Skin

Contact Info

Product

Resources

About