Pressurized liquid extraction of organic contaminants in environmental and food samples

Vázquez-Roig, Pablo; Picó, Yolanda

doi:10.1016/j.trac.2015.04.014

Cited by 105 publications

(42 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Hydroxyl group and carboxylic acids available biopolymers hydropholic interaction´s and low molecular can establish strong bonds internal polymeric network. When breaking matrix‐analyte interactions and achieving a higher diffusion rate, it is necessary to apply an elevated temperature and pressure (Vazquez‐Roig & Picó, ). Conditions 3 (176 °C, 85:15 ethanol:water (v:v)), 6 (200 °C, 50:50 ethanol:water (v:v)), and 8 (176 °C, 15:85 ethanol:water (v:v)), were more efficient in extracting phenolic acids.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Byproduct Generated During the Elaboration Process of Isotonic Beverage as a Natural Source of Bioactive Compounds

Gonçalves

Lozano‐Sánchez

Gomes

et al. 2018

Journal of Food Science

View full text Add to dashboard Cite

Agro‐industrial byproducts are considered good sources of macronutrients and phytochemicals. Fruit and vegetable residues (FVR), obtained after the production of an isotonic beverage, have previously been characterized containing 80% insoluble dietary fibers from total fibers (48.4%), 26% available carbohydrates, 9.5% proteins and 5% lipids. Nevertheless, fruit and vegetables provide phytochemicals which have been related to human health such as phenolic compounds. The loss of specific compounds over the production process is related to their partitioning between fruit and vegetables and byproducts. However, phenolic profile of FVR remains unknown. This work is focused on the evaluation of FVR as a natural source of these bioactive compounds. For this purpose, pressurized liquid extraction (PLE) has been proposed as extraction technique for recovering phenolic compounds from FVR. The experimental variables were temperature and percentage of solvent (ethanol and water). Phenolic compounds extracts were characterized by UPLC‐ESI‐Q‐TOF‐MS and a discussion about phenolic and macronutrient interactions was established. Globally, 88 compounds were tentatively identified: phenolic acids (28), flavonoids (32), and other polyphenols (28). The PLE conditions applied yielded different breaking matrix‐analyte interactions leading to an increase in the number of compounds. The highest phenolic acids content was achieved with high temperature while lower temperatures were more efficient in extracting flavonoid. By establishing the phenolics profile in food byproducts such as FVR, it is possible to more effectively apply these byproducts as nutraceutical, food or pharmaceutical ingredients. Practical Application Flow diagram of bioactive compounds recovering from isotonic beverage byproduct is proposed using pressurized liquid extraction. The plant‐bioactives mechanism relies on fruit and vegetable byproducts changes under different extraction conditions. The obtained extracts can most effectively be applied as nutraceuticals or as ingredients in food or pharmaceutical inputs.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The transport of analytes from the matrix is strongly influenced by the polarity of the solvent and its physical properties, which correlate to the various extraction parameters of the process (Vazquez-Roig & Picó, 2015). The solubility of organic compounds in the water often goes through a minimum value,…”

Section: Resultsmentioning

confidence: 99%

Byproduct Generated During the Elaboration Process of Isotonic Beverage as a Natural Source of Bioactive Compounds

Gonçalves

Lozano‐Sánchez

Gomes

et al. 2018

Journal of Food Science

View full text Add to dashboard Cite

show abstract

“…Traditional solid liquid extraction (SLE) methods include Soxhlet extraction, maceration and turbo-extraction (high-speed mixing). On the other hand, supercritical fluid extraction (SFE), ultrasound-assisted extraction (UAE), microwave-assisted extraction (MAE), and pressurized liquid extraction (PLE) are examples of innovative green extraction techniques [50].…”

Section: Extractionmentioning

confidence: 99%

Trends and Challenges in the Industrialization of Natural Colorants

Neves¹,

Silva²,

Meireles³

2019

fph

View full text Add to dashboard Cite

Consumer demands and their preferences for naturally derived colorants have increased exponentially and are widely associated with the image of healthy, safe and high-quality products, which constitutes a great challenge to food industries and related food science research institutions. Moreover, such demands have resulted in searches to increase the availability of these compounds. Despite the intense search for plant and microbial sources and efforts to increase extraction yield, few natural colorants have reached available the market. Physicochemical instability during the extraction and storage of natural colorants is a major limitation; some non-conventional extraction and encapsulation technologies are being advocated to minimize this problem. Thus, improving the techniques used for the encapsulation of sensitive or labile ingredients is important to make colorants and, consequently, their bioactive proprieties, accessible to consumers.

show abstract

“…The solid sample treatment is commonly performed with conventional liquid solvent extraction techniques such as Soxhlet and ultrasonic extraction, which require long extraction times and the use of large volumes of frequently toxic organic solvents [2]. Some alternative extraction techniques such as microwave-assisted extraction [3], pressurized liquid extraction [4] and supercritical fluid extraction [5] have been developed and used for the extraction of organic analytes from solid samples. These techniques reduce the organic solvent consumption and extraction time but require expensive extraction equipment.…”

Section: Introductionmentioning

confidence: 99%

Toprak Örneklerindeki Propaklor ve Prometrin Herbisitlerinin Sıvı Kromatografisi Analizleri Öncesinde Supramoleküler Çözücü Esaslı Mikroekstraksiyonu

Dursun

Yıldız

Çabuk

2018

Cumhuriyet Science Journal

View full text Add to dashboard Cite

Supramolecular solvents (SUPRASs) are the nano-structured liquids generated from amphiphiles through a self-assembly process, and constitute an alternative to molecular organic solvents with becoming more environmentally friendly in sample preparation step. In this study, a SUPRAS-based analytical method has been proposed for the microextraction of propachlor and prometryn herbicides in soil samples. The method involved the vortex mixing of the 300 mg of soil sample with 300 µL of SUPRAS for 8 min, subsequent centrifugation for the phase separation, and direct analysis of the SUPRAS phase by liquid chromatography with ultraviolet detection. Under optimal extraction conditions, the extraction recoveries for the herbicides ranged from 81 to 87 %. The method detection limits for propachlor and prometryn were 0.07 and 0.01 μg/g, respectively. Relative standard deviations obtained for the herbicides were less than 8.8 % and 12.1 % for intra-day and inter-day precisions, respectively. The microextraction of related herbicides from soil samples collected from the Zonguldak region was carried out efficiently. The recoveries obtained from spiked soil samples ranged from 80 to 108 %.Özet. Supramoleküler çözücüler (SUPRASs), amfifillerin kendiliğinden bir birleşme prosesi ile meydana getirdiği nano yapılı sıvılardır ve örnek hazırlama basamağında daha çevre dostu olmaları nedeniyle moleküler organik çözücülere bir alternatif oluştururlar. Bu çalışmada, toprak örneklerindeki propaklor ve prometrin herbisitlerinin mikroekstraksiyonu için SUPRAS esaslı bir analitik metot önerilmektedir. Önerilen metot, 300 mg toprak numunesinin 300 µL SUPRAS ile 8 dakika boyunca vorteks ile karıştırılmasını, ardından faz ayrımı için santrifüjlemeyi ve ultraviyole dedektörlü sıvı kromatografisiyle SUPRAS fazının doğrudan analizini içermektedir. Optimize edilen ekstraksiyon koşullarında, herbisitler için ekstraksiyon verimleri % 81 ile % 87 arasında değişim göstermiştir. Metot algılama limitleri, propaklor ve prometrin için sırasıyla 0.07 µg/g ve 0.01 µg/g olarak bulunmuştur. Herbisitler için bulunan bağıl standart sapma değerleri gün-içi ve günler-arası tekrarlanabilirlik olarak sırasıyla % 8.8 ve % 12.1'den daha düşük bulunmuştur. İlgili herbisitlerin Zonguldak bölgesinden toplanan toprak örneklerinden mikroekstraksiyonu verimli bir şekilde yapılmıştır. Standart madde ilavesi yapılan toprak örnekleri için elde edilen geri kazanım değerleri %80 ile %108 arasında değişim göstermiştir.Anahtar Kelimeler: Supramoleküler çözücü, mikroekstraksiyon, herbisitler, toprak örnekleri, sıvı kromatografisi.

show abstract

Pressurized liquid extraction of organic contaminants in environmental and food samples

Cited by 105 publications

References 66 publications

Byproduct Generated During the Elaboration Process of Isotonic Beverage as a Natural Source of Bioactive Compounds

Byproduct Generated During the Elaboration Process of Isotonic Beverage as a Natural Source of Bioactive Compounds

Trends and Challenges in the Industrialization of Natural Colorants

Toprak Örneklerindeki Propaklor ve Prometrin Herbisitlerinin Sıvı Kromatografisi Analizleri Öncesinde Supramoleküler Çözücü Esaslı Mikroekstraksiyonu

Contact Info

Product

Resources

About