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Hayes E, Dent E, Shannon OM, Zhong LZ, Bozanich T, Blekkenhorst LC, Zhu K, Bondonno CP, Siervo M, Hoogendijk EO, Hodgson JM, Prince RL, Lewis JR, Sim M. Higher plant-derived nitrate intake is associated with lower odds of frailty in a cross-sectional study of community-dwelling older women. Eur J Nutr 2024; 63:2281-2290. [PMID: 38761280 DOI: 10.1007/s00394-024-03412-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/20/2024] [Indexed: 05/20/2024]
Abstract
PURPOSE Dietary nitrate intake is inversely related to numerous contributors towards frailty, including cardiovascular disease and poor physical function. Whether these findings extend to frailty remain unknown. We investigated if habitual nitrate intake, derived from plants or animal-based foods, was cross-sectionally associated with frailty in women. METHODS Community-dwelling older Australian women (n = 1390, mean age 75.1 ± 2.7 years) completed a validated semi-quantitative food frequency questionnaire (FFQ). Nitrate concentrations in food were obtained from international nitrate databases. We adopted the Rockwood frailty index (FI) of cumulative deficits comprising 33 variables across multiple health domains (scored 0 to 1), which predicts increased hospitalisation and mortality risk. A FI ≥ 0.25 indicated frailty. Cross-sectional associations between nitrate intake (total plant and animal nitrate, separately) and frailty were analysed using multivariable-adjusted logistic regression models (including lifestyle factors), as part of restricted cubic splines. RESULTS A non-linear inverse relationship was observed between total plant nitrate intake and frailty. Compared to women with the lowest plant nitrate intake (Quartile [Q]1), women with greater intakes in Q2 (OR 0.69 95%CI 0.56-0.84), Q3 (OR 0.67 95%CI 0.50-0.90) and Q4 (OR 0.66 95%CI 0.45-0.98) had lower odds for frailty. A nadir in the inverse association was observed once intakes reached ~ 64 mg/d (median Q2). No relationship was observed between total animal nitrate and frailty. CONCLUSION Community-dwelling older women consuming low amounts of plant-derived nitrate were more likely to present with frailty. Consuming at least one daily serving (~ 75 g) of nitrate-rich green leafy vegetables may be beneficial in preventing frailty.
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Affiliation(s)
- Eleanor Hayes
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Elsa Dent
- Research Centre for Public Health, Equity and Human Flourishing, Torrens University Australia, Adelaide, South Australia, Australia
| | - Oliver M Shannon
- Human Nutrition and Exercise Research Centre, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Lie Zhou Zhong
- Nutrition and Health Innovation Research Institute, School of Health and Medical Sciences, Edith Cowan University, Perth, WA, Australia
| | - Trent Bozanich
- Nutrition and Health Innovation Research Institute, School of Health and Medical Sciences, Edith Cowan University, Perth, WA, Australia
| | - Lauren C Blekkenhorst
- Nutrition and Health Innovation Research Institute, School of Health and Medical Sciences, Edith Cowan University, Perth, WA, Australia
- Medical School, The University of Western Australia, Perth, WA, Australia
| | - Kun Zhu
- Medical School, The University of Western Australia, Perth, WA, Australia
- Deparment of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - Catherine P Bondonno
- Nutrition and Health Innovation Research Institute, School of Health and Medical Sciences, Edith Cowan University, Perth, WA, Australia
- Medical School, The University of Western Australia, Perth, WA, Australia
| | - Mario Siervo
- School of Public Health, Curtin University, Perth, WA, Australia
| | - Emiel O Hoogendijk
- Department of Epidemiology and Data Science, VU University Medical Center, Amsterdam UMC, Amsterdam, Netherlands
- Ageing and Later Life Research Program, Amsterdam Public Health Research Institute, Amsterdam UMC, Amsterdam, Netherlands
| | - Jonathan M Hodgson
- Nutrition and Health Innovation Research Institute, School of Health and Medical Sciences, Edith Cowan University, Perth, WA, Australia
- Medical School, The University of Western Australia, Perth, WA, Australia
| | - Richard L Prince
- Medical School, The University of Western Australia, Perth, WA, Australia
| | - Joshua R Lewis
- Nutrition and Health Innovation Research Institute, School of Health and Medical Sciences, Edith Cowan University, Perth, WA, Australia
- Medical School, The University of Western Australia, Perth, WA, Australia
| | - Marc Sim
- Nutrition and Health Innovation Research Institute, School of Health and Medical Sciences, Edith Cowan University, Perth, WA, Australia.
- Medical School, The University of Western Australia, Perth, WA, Australia.
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Winstead D, Di Gioia F, Jauregui M, Jacobson M. Nutritional properties of raw and cooked Azolla caroliniana Willd., an aquatic wild edible plant. Food Sci Nutr 2024; 12:2050-2060. [PMID: 38455165 PMCID: PMC10916663 DOI: 10.1002/fsn3.3904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/28/2023] [Accepted: 12/06/2023] [Indexed: 03/09/2024] Open
Abstract
Azolla caroliniana Willd. is an understudied wild edible plant native to the Eastern United States. Other species of Azolla have been used across the world for several thousand years as a livestock feed and as "green manure." The use of Azolla for human consumption is thought to be limited by its high total polyphenolic content (TPC). However, the TPC and nutritional content of A. caroliniana has not been thoroughly studied. We measured TPC and other nutrients before and after cooking methods designed to lower TPC. We found that TPC was 4.26 g gallic acid equivalent (GAE) kg-1 DW in raw A. caroliniana. All cooking methods significantly lowered TPC. Protein content was 19% DW, and the apparent protein digestibility was 78.45%. Our yield was 173 g FW m-2 day-1 and 5.53 g DW m-2 day-1. Azolla caroliniana is a high-yielding plant with great potential for cultivation and domestication.
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Affiliation(s)
- Daniel Winstead
- Department of Ecosystem Science and Management, College of Agricultural SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Francesco Di Gioia
- Department of Plant Science, College of Agricultural SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Marjorie Jauregui
- Department of Food Science, College of Agricultural SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
| | - Michael Jacobson
- Department of Ecosystem Science and Management, College of Agricultural SciencesThe Pennsylvania State UniversityUniversity ParkPennsylvaniaUSA
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3
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Demirel Ozbek Y, Saral O, Turker PF. Modern and traditional cooking methods affect the antioxidant activity and phenolic compounds content of Trachystemon Orientalis (L.) G. Don. PLoS One 2024; 19:e0299037. [PMID: 38394328 PMCID: PMC10890727 DOI: 10.1371/journal.pone.0299037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/02/2024] [Indexed: 02/25/2024] Open
Abstract
Trachystemon orientalis (L.) G. Don is a medicinal plant with beneficial effects on human health. Its antioxidant and phenolic compound content is higher than most natural plants. This is the first study on the cooking of this consumed plant. This study investigated how different cooking methods and times affect the antioxidant activity and phenolic compound content of Trachystemon orientalis (L.) G. Don. The Folin-Ciocalteu method (FCR), ferric-reducing antioxidant power (FRAP), copper-reducing antioxidant capacity (CUPRAC), and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity were used to evaluate the antioxidant activity and total phenolic content (TPC). Phenolic compounds were also determined by high-performance liquid chromatography (HPLC). Microwave cooking, stir-frying and sous vide increased TPC and antioxidant activity (p<0.05). Steaming decreased TPC and antioxidant activity (p<0.05). It was determined that the best cooking method and time was stir-frying for 15 minutes (TPC, CUPRAC and FRAP values 45.18±3.91 mg GAE/g DW, 15559.39±106.90 mmol Troloks/g DW and 555.10±24.05 μmol Fe (II)/g DW, respectively). Raw Trachystemon orientalis (L.) G. Don was detected with caffeic acid (31.53±0.25 mg/100 g DW). New phenolic compounds (protocatechuic acid and p-coumaric acid) were formed by boiling, stir-frying, microwaving, and sous vide methods. In conclusion, regarding antioxidant activity and phenolic compounds of Trachystemon orientalis (L.) G. Don; the best cooking methods are microwave, stir-frying, and sous vide (p<0.05). The most wrong cooking method is steaming (p<0.05).
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Affiliation(s)
- Yagmur Demirel Ozbek
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Recep Tayyip Erdoğan University, Rize, Turkiye
| | - Ozlem Saral
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Recep Tayyip Erdoğan University, Rize, Turkiye
| | - Perim Fatma Turker
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Başkent University, Ankara, Turkiye
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Macuh M, Kojić N, Knap B. The Effects of Nitrate Supplementation on Performance as a Function of Habitual Dietary Intake of Nitrates: A Randomized Controlled Trial of Elite Football Players. Nutrients 2023; 15:3721. [PMID: 37686753 PMCID: PMC10489871 DOI: 10.3390/nu15173721] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Nitrates are an effective ergogenic supplement; however, the effects of nitrate supplements based on habitual dietary nitrate intake through diet alone are not well understood. We aimed to assess this in a group of 15 highly trained football players from Slovenian football's First Division. Participants underwent two separate Cooper performance tests either with nitrate supplementation (400 mg nitrates) or placebo while having their nutrition assessed for nitrate intake, as well as energy and macronutrient intake. Nitrate supplementation had a statistically significant positive effect on performance if baseline dietary nitrate intake was below 300 mg (p = 0.0104) in both the placebo and intervention groups. No effects of nitrate supplementation when baseline dietary nitrate intake was higher than 300 mg in the placebo group could be concluded due to the small sample size. Nitrate supplementation did not have a significant effect on perceived exertion. The daily nitrate intake of the participants was measured at 165 mg, with the majority of nitrates coming from nitrate-rich vegetables.
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Affiliation(s)
- Matjaž Macuh
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 10, 1000 Ljubljana, Slovenia
| | - Nenad Kojić
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 10, 1000 Ljubljana, Slovenia
| | - Bojan Knap
- Department of Nephrology, University Medical Centre Ljubljana, Zaloška 7, 1000 Ljubljana, Slovenia
- Faculty of Medicine, University of Ljubljana, Korytkova ulica 2, 1000 Ljubljana, Slovenia
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Sergio L, Di Venere D, Gonnella M, D’Imperio M, Baruzzi F, Pinto L, Boari F, Cantore V, Candido V. Quality and Safety of Ready-to-Eat Golden Thistle ( Scolymus hispanicus L.): A New Product for Traditional Italian Dishes. PLANTS (BASEL, SWITZERLAND) 2023; 12:1622. [PMID: 37111846 PMCID: PMC10144175 DOI: 10.3390/plants12081622] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/05/2023] [Accepted: 04/07/2023] [Indexed: 06/19/2023]
Abstract
Golden thistle (Scolymus hispanicus L.) is a wild edible plant belonging to Asteraceae family, with a great potential for food applications. The aim of this study was to identify the best cooking procedure able to provide a high-quality, ready-to-use product. For this purpose, leaf midribs (the most used edible part of the plant) were cooked by boiling, steaming, and 'sous vide', and the cooked products were compared for their phenolic content and composition, antioxidant activity, sugar and inorganic ion content, organoleptic characteristics, and microbial safety, this latter also during storage. In general, boiling caused a decrease in the value of these parameters, despite being the best product for taste and overall acceptability. On the contrary, steaming and 'sous vide' resulted in the best treatments to preserve antioxidant activity, total phenols, and chlorogenic acid. In particular, in 'sous vide' cooked samples, a significant increase in the value of these parameters and a remarkable decrease in nitrate content were found. Moreover, 'sous vide' resulted in the best treatment also regarding microbial safety during shelf life; actually, after 15 days of storage at 8 °C, Enterobacteriaceae and mesophilic aerobic bacteria were not detectable in 'sous vide' samples. These results contributed to increase the knowledge of a wild edible plant with high nutritional properties and promoting its consumption by obtaining a ready-to-use product with good organoleptic characteristics and endowed with a long period of shelf life.
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Affiliation(s)
- Lucrezia Sergio
- Institute of Sciences of Food Production, National Research Council of Italy (CNR), Via G. Amendola 122/O, 70126 Bari, Italy; (L.S.); (M.G.); (M.D.); (F.B.); (L.P.); (V.C.)
| | - Donato Di Venere
- Institute of Sciences of Food Production, National Research Council of Italy (CNR), Via G. Amendola 122/O, 70126 Bari, Italy; (L.S.); (M.G.); (M.D.); (F.B.); (L.P.); (V.C.)
| | - Maria Gonnella
- Institute of Sciences of Food Production, National Research Council of Italy (CNR), Via G. Amendola 122/O, 70126 Bari, Italy; (L.S.); (M.G.); (M.D.); (F.B.); (L.P.); (V.C.)
| | - Massimiliano D’Imperio
- Institute of Sciences of Food Production, National Research Council of Italy (CNR), Via G. Amendola 122/O, 70126 Bari, Italy; (L.S.); (M.G.); (M.D.); (F.B.); (L.P.); (V.C.)
| | - Federico Baruzzi
- Institute of Sciences of Food Production, National Research Council of Italy (CNR), Via G. Amendola 122/O, 70126 Bari, Italy; (L.S.); (M.G.); (M.D.); (F.B.); (L.P.); (V.C.)
| | - Loris Pinto
- Institute of Sciences of Food Production, National Research Council of Italy (CNR), Via G. Amendola 122/O, 70126 Bari, Italy; (L.S.); (M.G.); (M.D.); (F.B.); (L.P.); (V.C.)
| | - Francesca Boari
- Institute of Sciences of Food Production, National Research Council of Italy (CNR), Via G. Amendola 122/O, 70126 Bari, Italy; (L.S.); (M.G.); (M.D.); (F.B.); (L.P.); (V.C.)
| | - Vito Cantore
- Institute of Sciences of Food Production, National Research Council of Italy (CNR), Via G. Amendola 122/O, 70126 Bari, Italy; (L.S.); (M.G.); (M.D.); (F.B.); (L.P.); (V.C.)
| | - Vincenzo Candido
- Department of European and Mediterranean Cultures, University of Basilicata, Via Lanera, 10, 75100 Matera, Italy;
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McMahon NF, Brooker PG, Pavey TG, Leveritt MD. Nitrate, nitrite and nitrosamines in the global food supply. Crit Rev Food Sci Nutr 2022; 64:2673-2694. [PMID: 36168920 DOI: 10.1080/10408398.2022.2124949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Inorganic nitrate provided by either nitrate salts or food supplements may improve cardiometabolic health. However, current methods to assess dietary nitrate, nitrite and nitrosamine consumption are inadequate. The purpose of this study was to develop a reference database to estimate the levels of nitrate, nitrite and nitrosamines in the global food supply. A systematic literature search was undertaken; of the 5,747 articles screened, 448 met the inclusion criteria. The final database included data for 1,980 food and beverages from 65 different countries. There were 5,105 unique records for nitrate, 2,707 for nitrite, and 954 for nitrosamine. For ease of use, data were sorted into 12 categories; regarding nitrate and nitrite concentrations in food and beverages, 'vegetables and herbs' were most reported in the literature (n = 3,268 and n = 1,200, respectively). For nitrosamines, 'protein foods of animal origin' were most reported (n = 398 records). This database will allow researchers and practitioners to confidently estimate dietary intake of nitrate, nitrite and nitrosamines. When paired with health data, our database can be used to investigate associations between nitrate intake and health outcomes, and/or exercise performance and could support the development of key dietary nitrate intake guidelines.
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Affiliation(s)
- Nicholas F McMahon
- School of Human Movement and Nutrition Sciences, University of Queensland, St. Lucia, Queensland, Australia
| | - Paige G Brooker
- School of Human Movement and Nutrition Sciences, University of Queensland, St. Lucia, Queensland, Australia
| | - Toby G Pavey
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Kelvin Grove, Queensland, Australia
| | - Michael D Leveritt
- School of Human Movement and Nutrition Sciences, University of Queensland, St. Lucia, Queensland, Australia
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Beta vulgaris as a Natural Nitrate Source for Meat Products: A Review. Foods 2021; 10:foods10092094. [PMID: 34574204 PMCID: PMC8465333 DOI: 10.3390/foods10092094] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/25/2021] [Accepted: 09/02/2021] [Indexed: 12/31/2022] Open
Abstract
Curing meat products is an ancient strategy to preserve muscle foods for long periods. Nowadays, cured meat products are widely produced using nitrate and nitrite salts. However, the growing of the clean-label movement has been pushing to replace synthetic nitrate/nitrite salts (indicated as E-numbers in food labels) with natural ingredients in the formulation of processed foods. Although no ideal synthetic nitrate/nitrite replacements have yet been found, it is known that certain vegetables contain relevant amounts of nitrate. Beta vulgaris varieties (Swiss chard/chard, beetroot, and spinach beet, for instance) are widely produced for human consumption and have relevant amounts of nitrate that could be explored as a natural ingredient in cured meat product processing. Thus, this paper provides an overview of the main nitrate sources among Beta vulgaris varieties and the strategic use of their liquid and powder extracts in the production of cured meat products.
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Tsiompah G, Murwani R, Maharani N. Effects of Cooking Method on the Antioxidant Activity and Inhibition of Lipid Peroxidation of the Javanese Salad "Pecel" Vegetables and Its Peanut Sauce Dressing. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2021; 2021:8814606. [PMID: 33681348 PMCID: PMC7910052 DOI: 10.1155/2021/8814606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 11/25/2020] [Accepted: 02/01/2021] [Indexed: 11/17/2022]
Abstract
Vegetables are essential in our diet to maintain health, partly due to their antioxidant properties. A well-known Javanese salad called "Pecel" is prepared by boiling the vegetables and dressed with seasoned peanut sauce. Cooking can reduce or improve the antioxidant properties of foods; therefore, the purpose of this study was to evaluate the effects of brief water boiling (1 min), steaming (1 min), and water blanching (20 s) of the Javanese Pecel vegetables, with or without the peanut sauce. We assessed the in vitro antioxidant capacity and lipid peroxidation inhibition of the salad samples prepared using each cooking method. Six vegetables, i.e., Sesbania grandiflora (turi) flower, Amaranthus hybridus L. (spinach), Carica papaya (papaya) leaves, Cosmos caudatus L. (kenikir) leaves, Vigna unguiculata ssp. Sesquipedalis (yard-long beans), and Vigna radiata (mung-bean) sprouts were cooked by boiling or steaming for 1 min or blanching for 20 s. Peanut (Arachis hypogaea), the raw material for peanut sauce, was fried in either fresh palm oil or repeatedly used palm oil. Our results revealed that the highest antioxidant capacity (percent inhibition of DPPH radicals) was observed following boiling for 1 min in case of spinach (41.94 ± 9.8%), papaya (59.04 ± 5.35%), kenikir (54.93% ± 6.32%), and yard-long beans (70.21 ± 8.91%); steaming for 1 min in case of turi flower (60.25 ± 3.63%); and blanching for 20 s in case of mung-bean sprouts (49.27 ± 3.69%). Peanut sauce prepared by frying peanuts in fresh or repeatedly used palm oil reduces the natural antioxidant and lipid peroxidation inhibition properties. However, seasoning the peanut sauce with fresh garlic and lime leaves can restore the lost antioxidant properties. Our study provides the first and clear evidence of the optimal cooking method for Pecel vegetables and sheds light on the wisdom behind the existing traditional cooking method.
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Affiliation(s)
- Gregorius Tsiompah
- Department of Nutrition-Master Program in Nutrition Science, Faculty of Medicine, Universitas Diponegoro, Semarang, Indonesia
| | - Retno Murwani
- Department of Nutrition-Master Program in Nutrition Science, Faculty of Medicine, Universitas Diponegoro, Semarang, Indonesia
- Faculty of Animal and Agricultural Sciences, Universitas Diponegoro, Semarang, Indonesia
- Natural Product Laboratory-UPT-Laboratorium Terpadu (Integrated Laboratory for Research and Services), Universitas Diponegoro, Semarang 50275, Indonesia
| | - Nani Maharani
- Department of Pharmacology and Therapy, Faculty of Medicine, Universitas Diponegoro, Semarang 50275, Indonesia
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9
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Managa MG, Shai J, Thi Phan AD, Sultanbawa Y, Sivakumar D. Impact of Household Cooking Techniques on African Nightshade and Chinese Cabbage on Phenolic Compounds, Antinutrients, in vitro Antioxidant, and β-Glucosidase Activity. Front Nutr 2021; 7:580550. [PMID: 33409289 PMCID: PMC7779405 DOI: 10.3389/fnut.2020.580550] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 11/10/2020] [Indexed: 11/13/2022] Open
Abstract
Different household cooking techniques (boiling, steaming, stir frying, and microwave) were tested on the changes of targeted phenolic compounds, antioxidant property (ferric reducing-antioxidant power (FRAP) activity), α-glucosidase activity, antinutritive compounds, and sensory properties in commonly consumed traditional leafy vegetables in Southern Africa, the non-heading Chinese cabbage (Brassica rapa L. subsp. chinensis) and African nightshade (Solanum retroflexum Dun). Stir frying increased kaempferol-3-O-hydroxyferuloyl-trihexoside, kaempferol-dihexoside, sinapoyl malate, rutin, and isorhamnetin-O-dihexoside in Chinese cabbage leaves, followed by steaming. Similarly, stir frying increased kaempferol-3-O-rutinoside, chlorogenic acid, caffeoylmalic acid, and quercetin-3-O-xylosyl-rutinoside in nightshade, followed by steaming. Biomarkers, sinapoyl malate (Chinese cabbage) and caffeoylmalic acid (nightshade), separated the stir frying from the other cooking techniques. Steaming and stir-frying techniques significantly increased the FRAP activity; whereas boiling and microwaving reduced the tannin, oxalate, and phytate contents in both leafy vegetables and steroidal saponins in nightshade. Stir-fried nightshade leaf extract showed the most effective inhibition against α-glucosidase activity, with an IC50 of 26.4 μg ml-1, which was higher than acarbose, a synthetic compound (positive control; IC50 69.83 μg ml-1). Sensory panelists preferred the stir-fried Chinese cabbage and nightshade leaves, followed by steamed, microwaved, and boiled vegetables.
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Affiliation(s)
- Millicent G Managa
- Phytochemical Food Network Research Group, Department of Crop Sciences, Tshwane University of Technology, Pretoria, South Africa
| | - Jerry Shai
- Department of Biomedical Sciences, Tshwane University of Technology, Pretoria, South Africa
| | - Anh Dao Thi Phan
- Agricultural Research Council Industrial Transformation Training Centre for Uniquely Australian Foods, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
| | - Yasmina Sultanbawa
- Agricultural Research Council Industrial Transformation Training Centre for Uniquely Australian Foods, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
| | - Dharini Sivakumar
- Phytochemical Food Network Research Group, Department of Crop Sciences, Tshwane University of Technology, Pretoria, South Africa.,Agricultural Research Council Industrial Transformation Training Centre for Uniquely Australian Foods, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD, Australia
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10
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The Beneficial Health Effects of Vegetables and Wild Edible Greens: The Case of the Mediterranean Diet and Its Sustainability. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10249144] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The Mediterranean diet (MD) concept as currently known describes the dietary patterns that were followed in specific regions of the area in the 1950s and 1960s. The broad recognition of its positive effects on the longevity of Mediterranean populations also led to the adoption of this diet in other regions of the world, and scientific interest focused on revealing its health effects. MD is not only linked with eating specific nutritional food products but also with social, religious, environmental, and cultural aspects, thus representing a healthy lifestyle in general. However, modern lifestyles adhere to less healthy diets, alienating people from their heritage. Therefore, considering the increasing evidence of the beneficial health effects of adherence to the MD and the ongoing transitions in consumers’ behavior, the present review focuses on updating the scientific knowledge regarding this diet and its relevance to agrobiodiversity. In addition, it also considers a sustainable approach for new marketing opportunities and consumer trends of the MD.
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García-Herrera P, Morales P, Cámara M, Fernández-Ruiz V, Tardío J, Sánchez-Mata MC. Nutritional and Phytochemical Composition of Mediterranean Wild Vegetables after Culinary Treatment. Foods 2020; 9:foods9121761. [PMID: 33260734 PMCID: PMC7760095 DOI: 10.3390/foods9121761] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/18/2020] [Accepted: 11/26/2020] [Indexed: 12/11/2022] Open
Abstract
Studies are scarce on the nutritional and phytochemical composition of wild edible Mediterranean plants after culinary processing. This work provides the nutritional composition after culinary treatment (including dietary fiber and mineral composition) and bioactive compounds (folates, vitamin C and organic acids) of wild Rumex pulcher L., Silene vulgaris (Moench) Garcke. leaves, and wild Asparagus acutifolius L., Bryonia dioica Jacq., Humulus lupulus L., Tamus communis L. young shoots. Shoots better preserved their nutrients than leaves, due to their different tissue structure. Fresh and cooked wild greens present high dietary fiber values, and remained at remarkable levels after boiling. Na, K, Mg and Zn were lost in about 50% due to culinary processing, while Ca, Cu, Fe and Mn were more stable. Boiled leaves of S. vulgaris remained as a good Mn source. A portion of 100 g of most of the cooked analyzed species could cover a relevant percentage of the daily requirement of folates (R. pulcher and A. acutifolius providing more than 80%) and vitamin C (T. communis and A. acutifolius providing more than 35%).
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Affiliation(s)
- Patricia García-Herrera
- Departamento Nutrición y Ciencia de los Alimentos, Facultad de Farmacia, Universidad Complutense de Madrid (UCM), Pza. Ramón y Cajal, s/n, E-28040 Madrid, Spain; (P.G.-H.); (M.C.); (M.C.S.-M.)
| | - Patricia Morales
- Departamento Nutrición y Ciencia de los Alimentos, Facultad de Farmacia, Universidad Complutense de Madrid (UCM), Pza. Ramón y Cajal, s/n, E-28040 Madrid, Spain; (P.G.-H.); (M.C.); (M.C.S.-M.)
- Correspondence: (P.M.); (V.F.-R.); Tel.: +34-913-941-808 (P.M.); +34-913-941-807 (V.F.-R.); Fax: +34-913-941-799 (P.M. & V.F.-R.)
| | - Montaña Cámara
- Departamento Nutrición y Ciencia de los Alimentos, Facultad de Farmacia, Universidad Complutense de Madrid (UCM), Pza. Ramón y Cajal, s/n, E-28040 Madrid, Spain; (P.G.-H.); (M.C.); (M.C.S.-M.)
| | - Virginia Fernández-Ruiz
- Departamento Nutrición y Ciencia de los Alimentos, Facultad de Farmacia, Universidad Complutense de Madrid (UCM), Pza. Ramón y Cajal, s/n, E-28040 Madrid, Spain; (P.G.-H.); (M.C.); (M.C.S.-M.)
- Correspondence: (P.M.); (V.F.-R.); Tel.: +34-913-941-808 (P.M.); +34-913-941-807 (V.F.-R.); Fax: +34-913-941-799 (P.M. & V.F.-R.)
| | - Javier Tardío
- Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario (IMIDRA), Finca “El Encín”, Apartado 127, E-28800 Alcalá de Henares, Spain;
| | - María Cortes Sánchez-Mata
- Departamento Nutrición y Ciencia de los Alimentos, Facultad de Farmacia, Universidad Complutense de Madrid (UCM), Pza. Ramón y Cajal, s/n, E-28040 Madrid, Spain; (P.G.-H.); (M.C.); (M.C.S.-M.)
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Bioactive Phenolics and Antioxidant Capacity of Some Wild Edible Greens as Affected by Different Cooking Treatments. Foods 2020; 9:foods9091320. [PMID: 32962154 PMCID: PMC7554971 DOI: 10.3390/foods9091320] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 02/06/2023] Open
Abstract
The study aimed to assess the influence of three cooking methods (boiling, steaming, and microwave-cooking) on (i) composition in individual phenolic compounds, (ii) total phenolic content (TPC), and (iii) total antioxidant activity (TAA) of eight Mediterranean wild edible species (Asparagus acutifolius, Asphodeline lutea, Beta vulgaris, Helminthotheca echioides, Sonchus oleraceus, Taraxacum officinale, Urospermum picroides, Urtica dioica). In raw greens, several caffeic acid derivatives (chicoric, caftaric, chlorogenic, neochlorogenic, 1,5-and 3,5-dicaffeoylquinic acids) and flavonoids (glycosides of apigenin, luteolin, quercetin, isorhamnetin, kaempferol) were identified. Cooking treatments did not affect qualitative phenolic composition, while quantitative changes were recorded in some phenolic compounds and in TPC. Generally, boiling decreased TPC and TAA, while chicoric, caftaric, chlorogenic acids and quercetin-3-rutinoside increased in some species after steaming and microwave-cooking, showing positive correlation with TAA. Results confirmed steaming and microwave-cooking as mild procedures able to increase antioxidant capacity of some species, producing beneficial effects on their nutraceutical properties.
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Petropoulos SA, Fernandes Â, Dias MI, Pereira C, Calhelha R, Di Gioia F, Tzortzakis N, Ivanov M, Sokovic M, Barros L, Ferreira ICFR. Wild and Cultivated Centaurea raphanina subsp. mixta: A Valuable Source of Bioactive Compounds. Antioxidants (Basel) 2020; 9:antiox9040314. [PMID: 32326524 PMCID: PMC7222212 DOI: 10.3390/antiox9040314] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 04/12/2020] [Accepted: 04/14/2020] [Indexed: 12/22/2022] Open
Abstract
Centaurea raphanina subsp. mixta (DC.) Runemark is a wild edible species endemic to Greece. This study evaluated the chemical composition and bioactive properties of wild and cultivated C. raphanina subsp. mixta plants. Wild plants had higher nutritional value than cultivated ones, whereas cultivated plants contained more tocopherols. Glucose and sucrose were higher in cultivated plants and trehalose in wild ones. Oxalic and total organic acids were detected in higher amounts in cultivated samples. The main fatty acids were α-linolenic, linoleic and palmitic acid, while wild plants were richer in polyunsaturated fatty acids. Two pinocembrin derivatives were the main phenolic compounds being detected in higher amounts in wild plants. Regarding the antioxidant activity, wild and cultivated plants were more effective in the oxidative haemolysis (OxHLIA) and thiobarbituric acid reactive substances (TBARS) assays, respectively. Moreover, both extracts showed moderate cytotoxicity in non-tumor cell lines (PLP2), while cultivated plants were more effective against cervical carcinoma (HeLa), breast carcinoma (MCF-7) and non-small lung cancer (NCI-H460) cell lines. Finally, wild plants showed higher antimicrobial activity than cultivated plants against specific pathogens. In conclusion, the cultivation of C.raphanina subsp. mixta showed promising results in terms of tocopherols content and antiproliferative effects, however further research is needed to decrease oxalic acid content.
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Affiliation(s)
- Spyridon A. Petropoulos
- Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Fytokou Street, 38446 N. Ionia, Greece
- Correspondence: (S.A.P.); (I.C.F.R.F.); Tel.: +30-2421-093-196 (S.A.P.); +351-273-330-904 (I.C.F.R.F.)
| | - Ângela Fernandes
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (Â.F.); (M.I.D.); (C.P.); (R.C.); (L.B.)
| | - Maria Ines Dias
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (Â.F.); (M.I.D.); (C.P.); (R.C.); (L.B.)
| | - Carla Pereira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (Â.F.); (M.I.D.); (C.P.); (R.C.); (L.B.)
| | - Ricardo Calhelha
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (Â.F.); (M.I.D.); (C.P.); (R.C.); (L.B.)
| | - Francesco Di Gioia
- Department of Plant Science, The Pennsylvania State University, University Park, Pennsylvania, PA 16802, USA;
| | - Nikolaos Tzortzakis
- Department of Agricultural Sciences, Biotechnology and Food Science, Cyprus University of Technology, Lemesos 3603, Cyprus;
| | - Marija Ivanov
- Institute for Biological Research “Siniša Stanković”-National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (M.I.); (M.S.)
| | - Marina Sokovic
- Institute for Biological Research “Siniša Stanković”-National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia; (M.I.); (M.S.)
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (Â.F.); (M.I.D.); (C.P.); (R.C.); (L.B.)
| | - Isabel C. F. R. Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal; (Â.F.); (M.I.D.); (C.P.); (R.C.); (L.B.)
- Correspondence: (S.A.P.); (I.C.F.R.F.); Tel.: +30-2421-093-196 (S.A.P.); +351-273-330-904 (I.C.F.R.F.)
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Impact of particle size of pulverized citrus peel tissue on changes in antioxidant properties of digested fluids during simulated in vitro digestion. FOOD SCIENCE AND HUMAN WELLNESS 2020. [DOI: 10.1016/j.fshw.2019.12.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Amato-Lourenco LF, Ranieri GR, de Oliveira Souza VC, Junior FB, Saldiva PHN, Mauad T. Edible weeds: Are urban environments fit for foraging? THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 698:133967. [PMID: 31505339 DOI: 10.1016/j.scitotenv.2019.133967] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/16/2019] [Accepted: 08/17/2019] [Indexed: 05/13/2023]
Abstract
Foraging wild-growing edible plants (WEPs) is a re-emerging practice with increasing popularity worldwide, including in urban areas. However, in cities, this practice raises questions about the safety of foraging these plants for human consumption, due to the potential exposure of plants to higher levels of pollutants. In this study, the concentration of 12 elements (Al, V, Cr, Mn, Co, Ni, Zn, As, Rb, Cd, Ba and Pb) in three different WEPs (Amaranthus spp., Plantago tomentosa and Taraxacum officinale) were determined according to different traffic categories in the municipality of São Paulo. Additionally, plants were sampled within the inner areas of three municipal parks in the same study region. Different gradients of elemental concentrations were obtained according to the traffic categories. Freeways presented higher concentrations of several elements than local roads or parks. For the WEPs collected along freeways and some plants along arterial roads, the concentrations of Pb exceeded safety levels for human consumption. Our data suggest that foraging in large urban centres should be performed preferentially in low-traffic areas.
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Affiliation(s)
- Luís Fernando Amato-Lourenco
- Department of Pathology, Faculty of Medicine, University of São Paulo, São Paulo, São Paulo, Brazil; Study Group on Urban Agriculture of the Institute of Advanced Studies (IEA), University of São Paulo, São Paulo, Brazil.
| | - Guilherme Reis Ranieri
- Department of Pathology, Faculty of Medicine, University of São Paulo, São Paulo, São Paulo, Brazil; Study Group on Urban Agriculture of the Institute of Advanced Studies (IEA), University of São Paulo, São Paulo, Brazil
| | | | - Fernando Barbosa Junior
- Faculty of Pharmaceutical Sciences of Ribeirao Preto, University of São Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Paulo Hilário Nascimento Saldiva
- Department of Pathology, Faculty of Medicine, University of São Paulo, São Paulo, São Paulo, Brazil; Institute of Advanced Studies (IEA), University of São Paulo, São Paulo, Brazil
| | - Thais Mauad
- Department of Pathology, Faculty of Medicine, University of São Paulo, São Paulo, São Paulo, Brazil; Study Group on Urban Agriculture of the Institute of Advanced Studies (IEA), University of São Paulo, São Paulo, Brazil
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Petropoulos SA, Fernandes Â, Calhelha RC, Di Gioia F, Kolovou P, Barros L, Ferreira ICFR. Chemical composition and bioactive properties of Cichorium spinosum L. in relation to nitrate/ammonium nitrogen ratio. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:6741-6750. [PMID: 31350862 DOI: 10.1002/jsfa.9956] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/12/2019] [Accepted: 07/21/2019] [Indexed: 05/14/2023]
Abstract
BACKGROUND Nitrogenous fertilizers may affect the yield and quality of leafy vegetables via the application rate and nitrogen form. In the present study, the effect of the nitrate:ammonium nitrogen ratio in the nutrient solution on the chemical composition and bioactive properties of Cichorium spinosum leaves was evaluated. For this purpose, C. spinosum plants were fertigated with nutrient solution containing different ratios of nitrate: ammonium nitrogen: (i) 100:0 NO3 -N:NH4 -N; (ii) 75:25 NO3 -N:NH4 -N; (iii) 50:50 NO3 -N:NH4 -N; (iv) 25:75 NO3 -N:NH4 -N; and (v) 0:100 NO3 -N:NH4 -N of total nitrogen; as well as (vi) 100% ureic nitrogen. RESULTS The only detected tocopherol isoforms were α- and δ-tocopherol, which were positively affected by nitrate nitrogen (100:0 NO3 -N:NH4 -N). Similar results were observed for individual and total organic acids. The main detected sugars were fructose, glucose and sucrose, with a varied effect of nutrient solution composition on their content, whereas total sugar concentration was positively affected by a balanced or a slightly increased proportion of NH4 -N (50:50 and 25:75 NO3 -N:NH4 -N). The fatty acids profile was beneficially affected by the highest NH4 -N ratio (0:100 NO3 -N:NH4 -N), whereas higher amounts of NO3 - than NH4 + nitrogen (75:25 NO3 -N:NH4 -N) resulted in a higher content of total phenolic compounds. Finally, no cytotoxic effects were observed against non-tumor (PLP2, HeLa) and tumor (HepG2, MCF-7, NCI-H460) cell lines for any of the studied nutrient solutions. CONCLUSION The modulation of NO3 -N:NH4 -N ratio in the nutrient solution supplied to C. spinosum may enhance the content of desirable health-promoting compounds and reduce the content of antinutrients, thus increasing the overall quality of the final product without compromising yield. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Spyridon A Petropoulos
- University of Thessaly, Department of Agriculture, Crop Production and Rural Environment, Nea Ionia, Magnissia, Greece
| | - Ângela Fernandes
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
| | - Ricardo C Calhelha
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
| | - Francesco Di Gioia
- Department of Plant Science, Pennsylvania State University, University Park, PA, USA
| | - Panagiota Kolovou
- University of Thessaly, Department of Agriculture, Crop Production and Rural Environment, Nea Ionia, Magnissia, Greece
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
| | - Isabel C F R Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
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Danowska‐Oziewicz M, Narwojsz A, Draszanowska A, Marat N. The effects of cooking method on selected quality traits of broccoli and green asparagus. Int J Food Sci Technol 2019. [DOI: 10.1111/ijfs.14269] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Marzena Danowska‐Oziewicz
- Department of Human Nutrition Faculty of Food Science University of Warmia and Mazury ul. Słoneczna 45F 10-718 Olsztyn Poland
| | - Agnieszka Narwojsz
- Department of Human Nutrition Faculty of Food Science University of Warmia and Mazury ul. Słoneczna 45F 10-718 Olsztyn Poland
| | - Anna Draszanowska
- Department of Human Nutrition Faculty of Food Science University of Warmia and Mazury ul. Słoneczna 45F 10-718 Olsztyn Poland
| | - Natalia Marat
- Department of Human Nutrition Faculty of Food Science University of Warmia and Mazury ul. Słoneczna 45F 10-718 Olsztyn Poland
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Traditional Salads and Soups with Wild Plants as a Source of Antioxidants: A Comparative Chemical Analysis of Five Species Growing in Central Italy. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:6782472. [PMID: 30949221 PMCID: PMC6425424 DOI: 10.1155/2019/6782472] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 01/30/2019] [Accepted: 02/18/2019] [Indexed: 02/06/2023]
Abstract
The interest and demand for nutraceuticals are rapidly increasing in many industrialized countries due to the emergence of health risks associated with the increased consumption of processed foods. Several wild Mediterranean plants used as traditional foods are an extraordinary source of nutraceutical substances with antioxidant properties. This study has two main aims: (1) to quantify the antioxidant properties of traditional wild food plants and (2) to determine if their use in soups (i.e., the cooking process) can alter their beneficial properties. We have evaluated the antioxidant capacity (ABTS, DPPH) and the Total Phenolic Content (Folin-Ciocalteu) of five herbaceous plants traditionally consumed in several areas of Central Italy: (A) Reichardia picroides (L.) Roth, (B) Hypochaeris radicata L., (C) Cichorium intybus L., (D) Tordylium apulum L., and (E) Helminthotheca echioides (L.) Holub. Our analyses show good levels of antioxidant capacity for all plants, with Reichardia picroides and Helminthotheca echioides having the highest levels. There is a high correlation between the antioxidant activity and the Total Phenolic Content especially in Reichardia picroides (R2=0.92) and Hypochaeris radicata (R2=0.93). Boiling the species caused a general decrease in the antioxidant activity and polyphenols. Our study confirms the health benefits of consuming wild plants, especially raw ones in salads. It also supports the use of ethnobotanical information to study and then promote the consumption of wild food plants.
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Identification of Salt and Drought Biochemical Stress Markers in Several Silene vulgaris Populations. SUSTAINABILITY 2019. [DOI: 10.3390/su11030800] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This study attempted to determine short-term responses to drought and salt stress in different Silene vulgaris genotypes and to identify potential abiotic stress biochemical indicators in this species. Four populations from contrasting habitats were subjected to drought and three levels of salinity under controlled greenhouse conditions. The determination of several growth parameters after the stress treatments allowed for ranking the tolerance to stress of the four analyzed populations on the basis of their relative degree of stress-induced growth inhibition. This was then correlated with changes in the leaf levels of monovalent ions (Na+, Cl−, and K+), photosynthetic pigments (chlorophylls a and b, carotenoids), osmolytes (total soluble sugars, proline), and non-enzymatic antioxidants (total phenolic compounds and flavonoids). Despite the observed differences, all four populations appeared to be relatively tolerant to both stress conditions, which in general did not cause a significant degradation of photosynthetic pigments and did not generate oxidative stress in the plants. Drought and salinity tolerance in S. vulgaris was mostly dependent on the use of Na+ and K+ for osmotic adjustment under stress, a mechanism that appeared to be constitutive, and not stress-induced, since relatively high concentrations of these cations (without reaching toxic levels) were also present in the leaves of control plants. The inhibition of additional transportation of toxic ions to the leaves, in response to increasing external salinity, seemed to be a relevant mechanism of tolerance, specifically to salt stress, whereas accumulation of soluble sugars under drought conditions may have contributed to tolerance to drought.
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20
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Di Gioia F, Avato P, Serio F, Argentieri MP. Glucosinolate profile of Eruca sativa, Diplotaxis tenuifolia and Diplotaxis erucoides grown in soil and soilless systems. J Food Compost Anal 2018. [DOI: 10.1016/j.jfca.2018.01.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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21
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Armesto J, Gómez-Limia L, Carballo J, Martínez S. Impact of vacuum cooking and boiling, and refrigerated storage on the quality of galega kale (Brassica oleracea var. acephala cv. Galega). Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2017.01.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Di Gioia F, De Bellis P, Mininni C, Santamaria P, Serio F. Physicochemical, agronomical and microbiological evaluation of alternative growing media for the production of rapini (Brassica rapa L.) microgreens. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:1212-1219. [PMID: 27311947 DOI: 10.1002/jsfa.7852] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/07/2016] [Accepted: 06/13/2016] [Indexed: 05/23/2023]
Abstract
BACKGROUND Peat-based mixes and synthetic mats are the main substrates used for microgreens production. However, both are expensive and non-renewable. Recycled fibrous materials may represent low-cost and renewable alternative substrates. Recycled textile-fiber (TF; polyester, cotton and polyurethane traces) and jute-kenaf-fiber (JKF; 85% jute, 15% kenaf-fibers) mats were characterized and compared with peat and Sure to Grow® (Sure to Grow, Beachwood, OH, USA; http://suretogrow.com) (STG; 100% polyethylene-terephthalate) for the production of rapini (Brassica rapa L.; Broccoletto group) microgreens. RESULTS All substrates had suitable physicochemical properties for the production of microgreens. On average, microgreens fresh yield was 1502 g m-2 in peat, TF and JKF, and was 13.1% lower with STG. Peat-grown microgreen shoots had a higher concentration of K+ and SO42- and a two-fold higher NO3- concentration [1959 versus 940 mg kg-1 fresh weight (FW)] than those grown on STG, TF and JKF. At harvest, substrates did not influence microgreens aerobic bacterial populations (log 6.48 CFU g-1 FW). Peat- and JKF-grown microgreens had higher yeast-mould counts than TF- and STG microgreens (log 2.64 versus 1.80 CFU g-1 FW). Peat-grown microgreens had the highest population of Enterobacteriaceae (log 5.46 ± 0.82 CFU g-1 ) and Escherichia coli (log 1.46 ± 0.15 CFU g-1 ). Escherichia coli was not detected in microgreens grown on other media. CONCLUSION TF and JKF may be valid alternatives to peat and STG because both ensured a competitive yield, low nitrate content and a similar or higher microbiological quality. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Francesco Di Gioia
- Department of Agricultural and Environmental Science, University of Bari Aldo Moro, via Amendola 165/A, 70126 Bari, Italy
- University of Florida, Institute of Food and Agricultural Sciences, South West Florida Research and Education Center, Immokalee, FL 34142, USA
| | - Palmira De Bellis
- Institute of Sciences of Food Production, National Research Council, via Amendola 122/O, 70126 Bari, Italy
| | - Carlo Mininni
- Institute of Sciences of Food Production, National Research Council, via Amendola 122/O, 70126 Bari, Italy
| | - Pietro Santamaria
- Department of Agricultural and Environmental Science, University of Bari Aldo Moro, via Amendola 165/A, 70126 Bari, Italy
| | - Francesco Serio
- Institute of Sciences of Food Production, National Research Council, via Amendola 122/O, 70126 Bari, Italy
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Di Gioia F, Renna M, Santamaria P. Sprouts, Microgreens and “Baby Leaf” Vegetables. FOOD ENGINEERING SERIES 2017. [DOI: 10.1007/978-1-4939-7018-6_11] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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Guarrera PM, Savo V. Wild food plants used in traditional vegetable mixtures in Italy. JOURNAL OF ETHNOPHARMACOLOGY 2016; 185:202-34. [PMID: 26944238 DOI: 10.1016/j.jep.2016.02.050] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 02/25/2016] [Accepted: 02/28/2016] [Indexed: 05/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mixtures of wild food plants, part of the Mediterranean diet, have potential benefits for their content in bioactive compounds, minerals and fibers. In Italy, wild plants are still consumed in various ways, for their taste, effects on health and nutritional value. In this paper, we provide a list of wild plants used in vegetable mixtures, indicating their phytochemical and nutritional profile, highlighting those not yet studied. AIM OF THE STUDY We provide a first complete review of traditional uses of wild food plants used as vegetables and their preparations (e.g., salads, soups, rustic pies). We also highlight their phytochemical constituents. MATERIALS AND METHODS We carried out an extensive literature review of ethnobotanical publications from 1894 to date for finding plants used in traditional vegetable mixtures. We also performed an online search for scientific papers providing the phytochemical profile of plants that were cited at least twice in recipes found in the literature. RESULTS We list a total of 276 wild taxa used in traditional vegetable mixtures, belonging to 40 families. Among these, the most represented are Asteraceae (88), Brassicaceae (33), Apiaceae (21), Amaranthaceae (12). Many plants are cited in many recipes across several Italian regions. Among the most cited plant we note: Reichardia picroides (L.) Roth, Sanguisorba minor Scop., Taraxacum campylodes G. E. Haglund, Urtica dioica L. Tuscany is the region with the highest number of food recipes that incorporate wild plants used as vegetables. We also list the phytochemical constituents and some pharmacological activities of the plants cited at least twice. Finally, we discuss topics such as the taste of plants used in the recipes. CONCLUSIONS Nineteen edible wild plants, such as Asparagus albus L., Campanula trachelium L., Hypochaeris laevigata (L.) Benth. & Hook f., Phyteuma spicatum L., Scolymus grandiflorus Desf., are not yet studied as regards their phytochemical and nutritional profile. Some plants should be avoided due to the presence of toxic compounds such as Adenostyles alliariae (Gouan) A. Kern or Ranunculus repens L.
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Affiliation(s)
- P M Guarrera
- Istituto Centrale per la Demoetnoantropologia, MIBACt, Piazza Marconi, 8-10, 00144 Rome, Italy.
| | - V Savo
- Hakai Institute, Simon Fraser University, 8888 University Drive, Burnaby, BC, Canada V5A1S6
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Elemental characterization of wild edible plants from countryside and urban areas. Food Chem 2014; 177:29-36. [PMID: 25660854 DOI: 10.1016/j.foodchem.2014.12.069] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 12/15/2014] [Accepted: 12/16/2014] [Indexed: 11/22/2022]
Abstract
Thirteen elements (Na, K, Ca, Mg, Fe, Mn, Cu, Zn, Cr, Co, Cd, Ni and Pb) in 11 different wild edible plants (WEP) (Amaranthus retroflexus, Foeniculum vulgare, Cichorium intybus, Glebionis coronaria, Sonchus spp., Borago officinalis, Diplotaxis tenuifolia, Sinapis arvensis, Papaver rhoeas, Plantago lagopus and Portulaca oleracea) collected from countryside and urban areas of Bari (Italy) were determined. B.officinalis and P.rhoeas could represent good nutritional sources of Mn and Fe, respectively, as well as A.retroflexus and S.arvensis for Ca. High intake of Pb and Cd could come from P.lagopus and A.retroflexus (1.40 and 0.13 mg kg(-1) FW, respectively). WEP may give a substantial contribution to the elements intake for consumers, but in some cases they may supply high level of elements potentially toxic for human health. Anyway, both ANOVA and PCA analyses have highlighted the low influence of the harvesting site on the elements content.
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