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Cegledi E, Repajić M, Balbino S, Peričić M, Dragović-Uzelac V. Sterols and pentacyclic triterpenoids from nettle root: content and composition as affected by pressurized liquid extraction. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:4058-4067. [PMID: 36478201 DOI: 10.1002/jsfa.12373] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 10/24/2022] [Accepted: 12/01/2022] [Indexed: 05/03/2023]
Abstract
BACKGROUND Nettle is a medicinal plant rich in bioactive molecules. The composition of nettle leaves and stems has been extensively studied, whereas the root has been insufficiently investigated. Therefore, the present study aimed to optimize the parameters of advanced extraction technique, pressurized liquid extraction (PLE), for the lipid fraction of nettle root rich in triterpenoid derivatives and to compare the efficiency of isolation under optimal conditions with conventional Soxhlet extraction (SE). RESULTS The PLE yields ranged from 0.39-1.63%, whereas the total content of triterpenoid derivatives ranged from 43.50-78.26 mg 100 g-1 , with nine sterols and three pentacyclic triterpenoids identified and quantified within a total range of 42.81-76.57 mg 100 g-1 and 0.69-1.68 mg 100 g-1 dried root, respectively. The most abundant sterol and pentacyclic triterpenoid were β-sitosterol and β-amyrin acetate, with mean values of 50.21 mg 100 g-1 and 0.56 mg 100 g-1 dried root. CONCLUSION The optimal PLE conditions were 150 °C/5 min/four cycles and showed significantly better performance compared to SE (68 °C, 8 h), establishing an excellent technique for the isolation of the nettle root lipid fraction. Also, triterpenoid derivatives from nettle could be used as functional ingredients for the development of new foods and dietary supplements. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Ena Cegledi
- Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Maja Repajić
- Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Sandra Balbino
- Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
| | - Matea Peričić
- Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia
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Lesma G, Luraghi A, Bavaro T, Bortolozzi R, Rainoldi G, Roda G, Viola G, Ubiali D, Silvani A. Phytosterol and γ-Oryzanol Conjugates: Synthesis and Evaluation of their Antioxidant, Antiproliferative, and Anticholesterol Activities. JOURNAL OF NATURAL PRODUCTS 2018; 81:2212-2221. [PMID: 30360625 DOI: 10.1021/acs.jnatprod.8b00465] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fifteen new multifunctional conjugates were designed and synthesized by chemically linking the steroidal framework of natural occurring γ-oryzanol and γ-oryzanol-derived phytosterols to a wide range of bioactive natural compounds (fatty acids, phenolic acids, amino acids, lipoic acid, retinoic acid, curcumin, and resveratrol). Starting from γ-oryzanol, which is the main component of rice bran oil, this study was aimed at assessing if the conjugation strategy might enhance some γ-oryzanol bioactivities. The antioxidant activity was evaluated through three different mechanisms, namely, DPPH-scavenging activity, metal-chelating activity, and β-carotene-bleaching inhibition. Measurement of the in vitro cell growth inhibitory effects on three different human cancer cellular lines was also carried out, and the potential hypocholesterolemic effect was studied. Compounds 10 and 15 displayed an improved antioxidant activity, with respect to that of γ-oryzanol. Compounds 2, 6, and 12 exerted an antiproliferative activity in the low micromolar range against HeLa and DAOY cells (GI50 < 10 μM). As for the claimed hypocholesterolemic effect of γ-oryzanol, none of the synthesized compounds inhibited the 3-hydroxy-3-methylglutaryl-coenzyme A reductase, a key enzyme in cholesterol biosynthesis.
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Affiliation(s)
- Giordano Lesma
- Dipartimento di Chimica , Università degli Studi di Milano , Via Golgi 19 , 20133 , Milano , Italy
| | - Andrea Luraghi
- Dipartimento di Biotecnologie e Bioscienze , Università degli Studi di Milano-Bicocca , Piazza della Scienza 2 , 20126 , Milano , Italy
| | - Teodora Bavaro
- Dipartimento di Scienze del Farmaco , Università degli Studi di Pavia , Viale Taramelli 12 , 27100 , Pavia , Italy
| | - Roberta Bortolozzi
- Dipartimento di Salute della Donna e del Bambino , Università degli Studi di Padova , Via Giustiniani 2 , 35128 , Padova , Italy
| | - Giulia Rainoldi
- Dipartimento di Chimica , Università degli Studi di Milano , Via Golgi 19 , 20133 , Milano , Italy
| | - Gabriella Roda
- Dipartimento di Scienze Farmaceutiche , Università degli Studi di Milano , Via Mangiagalli 25 , 20133 , Milano , Italy
| | - Giampietro Viola
- Dipartimento di Salute della Donna e del Bambino , Università degli Studi di Padova , Via Giustiniani 2 , 35128 , Padova , Italy
| | - Daniela Ubiali
- Dipartimento di Scienze del Farmaco , Università degli Studi di Pavia , Viale Taramelli 12 , 27100 , Pavia , Italy
- ISTM-CNR , Via Golgi 19 , 20133 , Milano , Italy
| | - Alessandra Silvani
- Dipartimento di Chimica , Università degli Studi di Milano , Via Golgi 19 , 20133 , Milano , Italy
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Sadek NF, Yuliana ND, Prangdimurti E, Priosoeryanto BP, Budijanto S. Plant Sterol Esters in Extruded Food Model Inhibits Colon Carcinogenesis by Suppressing Inflammation and Stimulating Apoptosis. J Med Food 2017; 20:659-666. [PMID: 28692412 DOI: 10.1089/jmf.2016.3876] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Plant sterols in their free forms are known to inhibit colon cancer. Whether these activities persist when compounds are incorporated into processed food is not reported yet. This study aimed to test the ability of plant sterol esters (PSE) incorporated into a nonpuffed extruded food (NPE) model to inhibit colon carcinogenesis. PSE was added into NPE at four concentrations (0.0%, 0.7%, 1.4%, and 2.1%). PSE-NPE activity was tested in azoxymethane/dextran sodium sulfate-induced Balb/c mice. The groups given PSE-NPE did not show any colon tumor formation. Immunohistochemistry results revealed that the group fed with 1.4% PSE had the lowest histoscore for cyclooxygenase-2 expression and the highest histoscore for cleaved caspase-3, cleaved caspase-8, and cleaved caspase-9expressions. The results of this study indicated that even after incorporation into a food system, which is processed using high pressure and temperature, PSE retained its chemopreventive activity. The proposed mechanisms are by suppressing inflammation and inducing apoptosis.
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Affiliation(s)
- Nur Fathonah Sadek
- 1 Department of Food Science and Technology, Bogor Agricultural University , Bogor, Indonesia
| | - Nancy Dewi Yuliana
- 1 Department of Food Science and Technology, Bogor Agricultural University , Bogor, Indonesia .,2 Southeast Asia Food and Agricultural Science and Technology (SEAFAST) Center, Bogor Agricultural University , Bogor, Indonesia
| | - Endang Prangdimurti
- 1 Department of Food Science and Technology, Bogor Agricultural University , Bogor, Indonesia .,2 Southeast Asia Food and Agricultural Science and Technology (SEAFAST) Center, Bogor Agricultural University , Bogor, Indonesia
| | - Bambang Pontjo Priosoeryanto
- 3 Division of Veterinary Pathology, Department of Veterinary Clinic Reproduction and Pathology, Bogor Agricultural University , Bogor, Indonesia
| | - Slamet Budijanto
- 1 Department of Food Science and Technology, Bogor Agricultural University , Bogor, Indonesia .,2 Southeast Asia Food and Agricultural Science and Technology (SEAFAST) Center, Bogor Agricultural University , Bogor, Indonesia
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