Response surface optimization of supercritical CO2 extraction of α-tocopherol from gel and skin of Aloe vera and almond leaves

Bashipour, Fatemeh; Ghoreishi, S.M.

doi:10.1016/j.supflu.2014.09.034

Cited by 28 publications

(9 citation statements)

References 22 publications

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“…B, it is clearly shown that the content of γ‐tocopherol increased with the temperature from approximately 40°C. A similar tendency was observed in the tocopherol content in Aloe vera extracts , melon seed oils , and seaweed extracts obtained with SC‐CO2. Therefore, at 38.1 MPa and 64°C, a maximum content of γ‐tocopherol (2.1 mg/mL) in tamarillo seed oil is obtained.…”

Section: Resultssupporting

confidence: 80%

Study of supercritical CO₂ extraction of tamarillo (Cyphomandra Betacea) seed oil containing high added value compounds

2018

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In the present investigation, the extraction of tamarillo seed oil was conducted using supercritical carbon dioxide (SC-CO2), under different conditions of pressure (20-38.1 MPa) and temperature (40-64°C). In order to determine the effect that these extraction parameters have over the yield and composition of the oil, a central composite design was used. The optimum yield was 21.07% obtained at 38.1 MPa and 64°C. The fatty acids of the tamarillo seed oil obtained with SC-CO2 were identified: linoleic (70.12%), oleic (16.18%), palmitic (9.68%), stearic (2.12%), linolenic (1.70%), and palmitoleic (0.23%). Other components, such as squalene (2.96-19.75 mg/mL), β-sitosterol (2.05-3.68 mg/mL), cycloartenol (1,23-2.81 mg/mL) dihydrolanosterol (0.28-0.70 mg/mL) sterols and γ-tocopherol (0.89-2.10 mg/mL) were also noted. The extraction kinetic was studied at 27.5 MPa -50°C and 38.1 MPa -64°C. The semi-empirical model of Sovová et al. [24] described 99.21% of the experimental behavior of extraction kinetics. High yields of tamarillo seed oil, as well as its unique composition of unsaturated fatty acids and minor components, show the potential for its application in the food, cosmetic, and pharmaceutical industries.

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Section: Resultssupporting

confidence: 80%

Study of supercritical CO₂ extraction of tamarillo (Cyphomandra Betacea) seed oil containing high added value compounds

2018

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“…Ekstraksi fluida superkritis mempunyai kelebihan yaitu lebih efisien karena waktu ekstraksi lebih pendek, tidak beracun, dan alternatif ramah lingkungan, kemurnian dan kelarutan yang lebih tinggi, dan biaya ekstraksi pelarut lebih rendah karena sistem dalam ekstraksi fluida superkritis, pelarutnya dapat di daur ulang (recycle) dan mengurangi masalah yang terkait dengan degradasi termal senyawa secara signifikan. Sedangkan kerugian utama dari ekstraksi CO 2 fluida superkritis adalah bahwa ekstraksi komponen polar sangat dibatasi oleh kekuatan pelarut CO 2 [9][10][11].…”

Section: Pendahuluanunclassified

Teknologi Ekstraksi Fluida Superkritis Dan Maserasi Pada Zingiber Officinalle Roscoe : Aktivitas Antioksidan Dan Kandungan Fitokimia

Sondari

Puspitasari

2018

jsmi

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TEKNOLOGI EKSTRAKSI FLUIDA SUPERKRITIS DAN MASERASI PADA ZINGIBER OFFICINALLE ROSCOE : AKTIVITAS ANTIOKSIDAN DAN KANDUNGAN FITOKIMIA. Proses ekstraksi Zingiber officinale Roscoe dengan metode fluida superkritis dan metode maserasi sebagai pembanding telah dilakukan. Ekstraksi CO 2 superkritis dilakukan pada kondisi proses tekanan 12-16 MPa, suhu 20-40 O C, waktu ekstraksi 2-6 jam dan laju alir fluida CO 2 superkritis 5,5 mL/menit. Pengaruh proses ekstraksi terhadap rendemen, aktivitas antioksidan dan kandungan fitokimia dari Zingiber officinale Rosc telah diteliti. Hasil penelitian ekstrak kasar jahe menunjukkan bahwa rendemen tertinggi 2,99 mg/g diperoleh pada suhu 40 O C, tekanan 16 MPa dan waktu ekstraksi 6 jam, dengan kandungan fenol total 72,73 mg GEA/g ekstrak, flavonoid total 0,90 % (b/b) dan aktivitas antioksidan sebesar 63,66 µg/mL. Hasil ekstrak kasar jahe dengan metode maserasi dihasilkan rendemen 3,10 mg/g, dengan kandungan phenol total 76,68 mg GEA/g ekstrak, flavonoid total 1,18 % (b/b) dan aktivitas antioksidan sebesar 122,85 µg/mL.

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“…27 Penelitian Fatemeh Bashipour (2014) yang mengekstraksi α-tokoferol menemukan bahwa kadar αtokoferol lebih tinggi pada kulit lidah buaya dibandingkan dengan daging lidah buaya yaitu masing diperoleh 16,29 dan 1,53 mg / 100 g sampel kering. 28 Studi telah mencatat aktivitas antioksidan lebih tinggi pada kulit lidah buaya dibandingkan daging lidah buaya. 29 Penurunan berat badan pada 2 bulan pertama memiliki efek menguntungkan pada profil lipid seperti pengurangan kadar kolesterol LDL dan trigliserida, apabila penurunan berat badan terus berlanjut maka terjadi peningkatan kadar kolesterol HDL.…”

Section: Kadar Antioksidan Totalunclassified

Pengaruh pemberian minuman lidah buaya terhadap kadar antioksidan total dan persentase lemak tubuh pada sindrom metabolik

Silitonga

Tjahjono

et al. 2018

JGI

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Background: Metabolic syndrome is related to glucose metabolism disturbance (hyperglycemia), lipid (dyslipidemia), high blood pressure, and central obesity. Metabolic syndrome implicates to heart attack, diabetes mellitus, hypertension, and death. Aloe vera, well known rich of polyphenol and vitamin, has a pharmacological effect to improve insulin resistance, chronic inflammation, and oxidative stress.Objective: To prove the effect of Aloe vera-based drink toward total antioxidant concentration improvement and body fat percentage reduction in metabolic syndrome subjects.Methods: Thus study was pre-post randomized true experimental study with control group design. The subjects were divided by 2 groups, treatment group (n=19) and control group (n=19). Treatment group was given 165 g/d Aloe vera-based drink for 30 days. Both of groups were given nutrition education about metabolic syndrome management. Total antioxidant concentration and body fat percentage were assessed pre-post-test by ABTS and BIA respectively, while food intake and activity were assessed by 24-h recall and GPAQ respectively. Independent t-test and Mann Whitney test were used to compare before and after treatment between control and treatment group.Results: Total antioxidant concentration significantly improved (p=0.00) in treatment group from 1.2 to 2.0 mmol/L, while total antioxidant concentration decreased from 1.4 to 1.3 mmol/L (p=0.074) in this control group. Moreover, there was significant difference of total antioxidant between treatment and control groups in the end of study (p=0.00). Furthermore, body fat percentage was reduced significantly from 32.8 to 32,4 mmol/L (p=0.005) in treatment group, while the reduction of body fat percentage in control group was not significant from 33.1 to 33,4 mmol/L (p=0.100). There was no difference of body fat percentage between two groups after intervention (p=0.358).Conclusion: Aloe vera-based drink improved total antioxidant concentration in metabolic syndrome subjects.

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Response surface optimization of supercritical CO2 extraction of α-tocopherol from gel and skin of Aloe vera and almond leaves

Cited by 28 publications

References 22 publications

Study of supercritical CO₂ extraction of tamarillo (Cyphomandra Betacea) seed oil containing high added value compounds

Study of supercritical CO₂ extraction of tamarillo (Cyphomandra Betacea) seed oil containing high added value compounds

Teknologi Ekstraksi Fluida Superkritis Dan Maserasi Pada Zingiber Officinalle Roscoe : Aktivitas Antioksidan Dan Kandungan Fitokimia

Pengaruh pemberian minuman lidah buaya terhadap kadar antioksidan total dan persentase lemak tubuh pada sindrom metabolik

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Response surface optimization of supercritical CO2 extraction of α-tocopherol from gel and skin of Aloe vera and almond leaves

Cited by 28 publications

References 22 publications

Study of supercritical CO2 extraction of tamarillo (Cyphomandra Betacea) seed oil containing high added value compounds

Study of supercritical CO2 extraction of tamarillo (Cyphomandra Betacea) seed oil containing high added value compounds

Teknologi Ekstraksi Fluida Superkritis Dan Maserasi Pada Zingiber Officinalle Roscoe : Aktivitas Antioksidan Dan Kandungan Fitokimia

Pengaruh pemberian minuman lidah buaya terhadap kadar antioksidan total dan persentase lemak tubuh pada sindrom metabolik

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Product

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Study of supercritical CO₂ extraction of tamarillo (Cyphomandra Betacea) seed oil containing high added value compounds

Study of supercritical CO₂ extraction of tamarillo (Cyphomandra Betacea) seed oil containing high added value compounds