Ultrasound assisted methods for enhanced extraction of phenolic acids from Quercus Infectoria galls

Sukor, Nuramira Fateha; Jusoh, Rohayu; Rahim, Syarifah Abd; Kamarudin, Nur Syahirah

doi:10.1016/j.matpr.2018.07.060

Cited by 21 publications

(13 citation statements)

References 20 publications

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“…Generally, free phenolic compounds form a large part of phenolics. Their content depends on the extraction method, genetic, growth, storage, sunlight, harvest, and post‐harvest conditions, and a variety of plants (Ghaderi et al., 2012; Seukep et al., 2013; Sukor et al., 2018). Ti et al.…”

Section: Resultsmentioning

confidence: 99%

Phenolic profile and antioxidant activity of free/bound phenolic compounds of sesame and properties of encapsulated nanoparticles in different wall materials

Kenari

Razavi

2022

Food Science & Nutrition

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This study aimed to evaluate the antioxidant activity of free and bound flavonoid or phenolic compounds extracted from the sesame seed (Oltan and Yekta varieties) as natural antioxidants and to demonstrate the properties of nanoparticles. The total phenolic content (TPC) of Oltan was higher (864.70 mg GAE/100 g seed) than that of Yekta (629.23 mg GAE/100 g seed). Oltan took up higher amounts of free (516.86 mg GAE/100 g seed) and bound (347.83 mg GAE/100 g seed) phenolics than Yekta. Also, the Yekta variety exhibited lower amounts of free (45.89 mg CE/100 g seed) and bound flavonoids (21.51 mg CE/100 g seed) and the total flavonoid content (TFC) (67.40 mg CE/100 g seed). Chlorogenic acid was the major phenolic compound present in the sesame seed. In both the DPPH and ferric reducing antioxidant power (FRAP) assays, the highest antioxidant activity was observed in the Oltan variety. Free phenolics showed the highest antioxidant activity, followed by bound phenolics, free and bound flavonoids. Therefore, free phenolics of the Oltan variety were encapsulated in Portulaca oleracea and Trigonella foenum‐graecum seed gums. All nanoparticles showed nanometric size from 236.1 to 680.7 nm, negative zeta potential from −35.4 to −18.3 mV, high encapsulation efficiency from 61.35% to 74.49%, and desirable polydispersity index (PDI) between 0.315 and 0.332. Higher release of phenolics and sedimentation rate were observed in phenolic compounds encapsulated in Khorfeh and Shanbalileh, respectively. The gradual release of phenolic compounds, as well as sedimentation rate of composite coating during 40 days of storage, demonstrated that nanoencapsulated phenolics of sesame within the composite gum coating could be used as natural antioxidants in food systems.

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Section: Resultsmentioning

confidence: 99%

Phenolic profile and antioxidant activity of free/bound phenolic compounds of sesame and properties of encapsulated nanoparticles in different wall materials

Kenari

Razavi

2022

Food Science & Nutrition

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“…However, compared with the bath-type ultrasound, probe-type ultrasound is based on only one transducer which corresponds to only one frequency as the source of ultrasound power, while bath-type ultrasound device is the most commonly known type of ultrasonic equipment that consists of one or more ultrasonic transducers with more frequencies, which is beneficial to expand the application of multi-frequency ultrasound in the field of ultrasound extraction. Moreover, bath-type ultrasound device is usually equipped with temperature control, and it is readily cheap and lots of samples can be extracted simultaneously [20] , [21] .…”

Section: Introductionmentioning

confidence: 99%

Extraction of phenolics and anthocyanins from purple eggplant peels by multi-frequency ultrasound: Effects of different extraction factors and optimization using uniform design

Liao

Xue²,

Li³

2022

Ultrasonics Sonochemistry

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“…This could be due to the fact that the power reached into the solvent with the sonotrode is higher than that used in the bath, improving the mass transfer of phenolic compounds across cellular membranes into the solution. In addition, the delivered intensity is attenuated by the water present in the bath and the glassware used for the experiment [ 28 ].…”

Section: Resultsmentioning

confidence: 99%

Development of an Effective Sonotrode Based Extraction Technique for the Recovery of Phenolic Compounds with Antioxidant Activities in Cherimoya Leaves

Martín-García

Aznar-Ramos

Verardo

et al. 2022

Plants

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The leaves of Annona cherimola Mill (cherimoya) are a potential source of phenolic compounds that have been shown to have beneficial properties. Therefore, this study focuses on establishing an ultrasonic-assisted extraction of phenolic compounds in cherimoya leaves using a sonotrode. For that purpose, a Box-Behnken design based on a response surface methodology (RSM) was used to optimize factors, such as amplitude, extraction time and solvent composition to obtain the maximum content of phenolic compounds by HPLC-MS and the maximum in-vitro antioxidant activity by DPPH, ABTS and FRAP assays in ‘Fino de Jete’ cherimoya leaves. The optimal conditions were 70% amplitude, 10 min and 40:60 ethanol/water (EtOH/H2O) (v/v). The results obtained under these optimum conditions by using a sonotrode were compared with those from an ultrasonic bath; briefly, recovery of phenolic compounds by sonotrode was 2.3 times higher than a bath. Therefore, these optimal conditions were applied to different varieties ‘Campas’, ‘Fino de Jete’ and ‘Negrito Joven’ harvested in the Tropical Coast of Granada (Spain). A total of 39 phenolic compounds were determined in these cherimoya leaf extracts, 24 phenolic compounds by HPLC-MS and 15 proanthocianidins by HPLC-FLD. 5-p-coumaroylquinic acid, lathyroside-7-O-α-l-rhamnopyranoside and quercetin hexose acetate were first identified in cherimoya leaves. The most concentrated phenolic compounds were the flavonoids, such as rutin and quercetin hexoside and proanthocyanidins including monomers. Almost no significant differences in the phenolic content in these cultivars were found (11–13 mg/g d.w. for phenolic compounds and 11–20 mg/g d.w. for proanthocyanidins). In addition, sonotrode ultrasonic-assisted extraction has been shown to be an efficient extraction technique in the phenolic recovery from cherimoya leaves that could be implemented on an industrial scale.

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Ultrasound assisted methods for enhanced extraction of phenolic acids from Quercus Infectoria galls

Cited by 21 publications

References 20 publications

Phenolic profile and antioxidant activity of free/bound phenolic compounds of sesame and properties of encapsulated nanoparticles in different wall materials

Phenolic profile and antioxidant activity of free/bound phenolic compounds of sesame and properties of encapsulated nanoparticles in different wall materials

Extraction of phenolics and anthocyanins from purple eggplant peels by multi-frequency ultrasound: Effects of different extraction factors and optimization using uniform design

Development of an Effective Sonotrode Based Extraction Technique for the Recovery of Phenolic Compounds with Antioxidant Activities in Cherimoya Leaves

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