TY  - JOUR
AU  - De Oliveira, Izamara
AU  - Chrysargyris, Antonios
AU  - Heleno, Sandrina A.
AU  - Carocho, Marcio
AU  - Calhelha, Ricardo
AU  - Dias, Maria Ines
AU  - Petrović, Jovana
AU  - Soković, Marina
AU  - Petropoulos, Spyridon
AU  - Santos-Buelga, Celestino
AU  - Tzortzakis, Nikolaos
AU  - Barros, Lillian
PY  - 2023
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/6389
AB  - The present study aims to determine the combined effect of cropping system and irrigation regime on the chemical composition and bioactive properties of lemon balm aerial parts. For this purpose, lemon balm plants were grown under two farming systems (conventional farming vs organic farming) and two irrigation levels (full irrigation vs deficit irrigation) and harvested twice throughout the growing period. The collected aerial parts were subjected to three different methods of extractions, namely infusion, maceration and ultrasound-assisted extraction and the obtained extracts were evaluated in terms of chemical profile and bioactivities. Five organic acids with varied composition among the tested treatments were identified in all the tested samples for both harvests, namely, citric, malic, oxalic, shikimic and quinic acid. Regarding phenolic compounds composition, the most abundant ones were rosmarinic acid, lithospermic acid A isomer I and hydroxylsalvianolic E, especially for the maceration and infusion extraction methods. Full irrigation resulted in lower EC50 values than deficit irrigation only in the treatments of the second harvest, while variable cytotoxic and anti-inflammatory effects were recorded in both harvests. Finally, in most cases the lemon balm extracts has similar or better activity than the positive controls, while the antifungal activity of lemon balm extracts was stronger than the antibacterial effects. In conclusion, the results of the present study showed that the implemented agronomic practices, as well as the extraction protocol may significantly affect the chemical profile and bioactivities of lemon balm extracts, suggesting that both the farming system and the irrigation schedule may improve the quality of the extracts depending on the implemented extraction protocol.
PB  - Elsevier
T2  - Food Research International
T1  - Effects of the extraction techniques on the chemical composition and bioactive properties of lemon balm (Melissa officinalis L.) plants grown under different cropping and irrigation regimes.
VL  - 170
DO  - 10.1016/j.foodres.2023.113044
SP  - 113044
ER  - 

@article{
author = "De Oliveira, Izamara and Chrysargyris, Antonios and Heleno, Sandrina A. and Carocho, Marcio and Calhelha, Ricardo and Dias, Maria Ines and Petrović, Jovana and Soković, Marina and Petropoulos, Spyridon and Santos-Buelga, Celestino and Tzortzakis, Nikolaos and Barros, Lillian",
year = "2023",
abstract = "The present study aims to determine the combined effect of cropping system and irrigation regime on the chemical composition and bioactive properties of lemon balm aerial parts. For this purpose, lemon balm plants were grown under two farming systems (conventional farming vs organic farming) and two irrigation levels (full irrigation vs deficit irrigation) and harvested twice throughout the growing period. The collected aerial parts were subjected to three different methods of extractions, namely infusion, maceration and ultrasound-assisted extraction and the obtained extracts were evaluated in terms of chemical profile and bioactivities. Five organic acids with varied composition among the tested treatments were identified in all the tested samples for both harvests, namely, citric, malic, oxalic, shikimic and quinic acid. Regarding phenolic compounds composition, the most abundant ones were rosmarinic acid, lithospermic acid A isomer I and hydroxylsalvianolic E, especially for the maceration and infusion extraction methods. Full irrigation resulted in lower EC50 values than deficit irrigation only in the treatments of the second harvest, while variable cytotoxic and anti-inflammatory effects were recorded in both harvests. Finally, in most cases the lemon balm extracts has similar or better activity than the positive controls, while the antifungal activity of lemon balm extracts was stronger than the antibacterial effects. In conclusion, the results of the present study showed that the implemented agronomic practices, as well as the extraction protocol may significantly affect the chemical profile and bioactivities of lemon balm extracts, suggesting that both the farming system and the irrigation schedule may improve the quality of the extracts depending on the implemented extraction protocol.",
publisher = "Elsevier",
journal = "Food Research International",
title = "Effects of the extraction techniques on the chemical composition and bioactive properties of lemon balm (Melissa officinalis L.) plants grown under different cropping and irrigation regimes.",
volume = "170",
doi = "10.1016/j.foodres.2023.113044",
pages = "113044"
}

De Oliveira, I., Chrysargyris, A., Heleno, S. A., Carocho, M., Calhelha, R., Dias, M. I., Petrović, J., Soković, M., Petropoulos, S., Santos-Buelga, C., Tzortzakis, N.,& Barros, L.. (2023). Effects of the extraction techniques on the chemical composition and bioactive properties of lemon balm (Melissa officinalis L.) plants grown under different cropping and irrigation regimes.. in Food Research International
Elsevier., 170, 113044.
https://doi.org/10.1016/j.foodres.2023.113044

De Oliveira I, Chrysargyris A, Heleno SA, Carocho M, Calhelha R, Dias MI, Petrović J, Soković M, Petropoulos S, Santos-Buelga C, Tzortzakis N, Barros L. Effects of the extraction techniques on the chemical composition and bioactive properties of lemon balm (Melissa officinalis L.) plants grown under different cropping and irrigation regimes.. in Food Research International. 2023;170:113044.
doi:10.1016/j.foodres.2023.113044 .

De Oliveira, Izamara, Chrysargyris, Antonios, Heleno, Sandrina A., Carocho, Marcio, Calhelha, Ricardo, Dias, Maria Ines, Petrović, Jovana, Soković, Marina, Petropoulos, Spyridon, Santos-Buelga, Celestino, Tzortzakis, Nikolaos, Barros, Lillian, "Effects of the extraction techniques on the chemical composition and bioactive properties of lemon balm (Melissa officinalis L.) plants grown under different cropping and irrigation regimes." in Food Research International, 170 (2023):113044,
https://doi.org/10.1016/j.foodres.2023.113044 . .

TY  - JOUR
AU  - Petropoulos, Spyridon A.
AU  - Fernandes, Ângela
AU  - Plexida, Sofia
AU  - Pereira, Carla
AU  - Dias, Maria Inês
AU  - Calhelha, Ricardo
AU  - Chrysargyris, Antonios
AU  - Tzortzakis, Nikolaos
AU  - Petrović, Jovana
AU  - Soković, Marina
AU  - Ferreira, Isabel C. F. R.
AU  - Barros, Lillian
PY  - 2020
UR  - https://www.mdpi.com/2071-1050/12/20/8511
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3943
AB  - The environmental burden from crop production byproducts is gradually increasing and necessitates the sustainable management of waste towards a circular economy approach. In the present study, three byproducts (cotton ginning waste (CGW), ground hazelnut husks (GHH) and ground peanut husks (GPH)) were evaluated in lettuce cultivation. For this purpose, the tested materials were incorporated in soil at two different rates (25% and 50% of total substrate volume) while a control treatment (no addition of byproducts) was also considered. Fresh weight per plant and total yield was the highest for the GHH50% treatment. The highest fat, protein, carbohydrates and energy content were observed for the CGW25% treatment. Chemical composition also differed among the tested byproducts where CGW25% treatment had the highest total tocopherols, sugars (sucrose, fructose, trehalose and total sugars) and organic acids content. The most abundant fatty acids were α-linolenic, linoleic and palmitic acid in all the tested treatments, while the highest antioxidant activity was observed for the GHH50% treatment. Regarding polyphenols, phenolic acids content was the highest in the GHH treatments, whereas flavonoids were the highest for the CGW25% treatment. No cytotoxicity against the PLP2 non-tumor cell line was observed, whereas only the GPH50% treatment showed moderate efficacy against HeLa, HepG2 and MCF-7 cell lines. The tested extracts also showed moderate antibacterial activities and only the extracts from the CGW50% treatment were more effective than the positive control against Trichoderma viride. In conclusion, the present results showed the great potential of using the tested byproducts as soil amendments for vegetable crops production, since they may improve the nutritional parameters, the chemical profile and the bioactivities of the final product. The suggested alternative use of the tested byproducts not only will increase the added value of crops but will also alleviate the environmental burden from bulky agroindustry byproducts.
PB  - MDPI AG
T2  - Sustainability
T1  - The Sustainable Use of Cotton, Hazelnut and Ground Peanut Waste in Vegetable Crop Production
IS  - 20
VL  - 12
DO  - 10.3390/su12208511
SP  - 8511
ER  - 

@article{
author = "Petropoulos, Spyridon A. and Fernandes, Ângela and Plexida, Sofia and Pereira, Carla and Dias, Maria Inês and Calhelha, Ricardo and Chrysargyris, Antonios and Tzortzakis, Nikolaos and Petrović, Jovana and Soković, Marina and Ferreira, Isabel C. F. R. and Barros, Lillian",
year = "2020",
abstract = "The environmental burden from crop production byproducts is gradually increasing and necessitates the sustainable management of waste towards a circular economy approach. In the present study, three byproducts (cotton ginning waste (CGW), ground hazelnut husks (GHH) and ground peanut husks (GPH)) were evaluated in lettuce cultivation. For this purpose, the tested materials were incorporated in soil at two different rates (25% and 50% of total substrate volume) while a control treatment (no addition of byproducts) was also considered. Fresh weight per plant and total yield was the highest for the GHH50% treatment. The highest fat, protein, carbohydrates and energy content were observed for the CGW25% treatment. Chemical composition also differed among the tested byproducts where CGW25% treatment had the highest total tocopherols, sugars (sucrose, fructose, trehalose and total sugars) and organic acids content. The most abundant fatty acids were α-linolenic, linoleic and palmitic acid in all the tested treatments, while the highest antioxidant activity was observed for the GHH50% treatment. Regarding polyphenols, phenolic acids content was the highest in the GHH treatments, whereas flavonoids were the highest for the CGW25% treatment. No cytotoxicity against the PLP2 non-tumor cell line was observed, whereas only the GPH50% treatment showed moderate efficacy against HeLa, HepG2 and MCF-7 cell lines. The tested extracts also showed moderate antibacterial activities and only the extracts from the CGW50% treatment were more effective than the positive control against Trichoderma viride. In conclusion, the present results showed the great potential of using the tested byproducts as soil amendments for vegetable crops production, since they may improve the nutritional parameters, the chemical profile and the bioactivities of the final product. The suggested alternative use of the tested byproducts not only will increase the added value of crops but will also alleviate the environmental burden from bulky agroindustry byproducts.",
publisher = "MDPI AG",
journal = "Sustainability",
title = "The Sustainable Use of Cotton, Hazelnut and Ground Peanut Waste in Vegetable Crop Production",
number = "20",
volume = "12",
doi = "10.3390/su12208511",
pages = "8511"
}

Petropoulos, S. A., Fernandes, Â., Plexida, S., Pereira, C., Dias, M. I., Calhelha, R., Chrysargyris, A., Tzortzakis, N., Petrović, J., Soković, M., Ferreira, I. C. F. R.,& Barros, L.. (2020). The Sustainable Use of Cotton, Hazelnut and Ground Peanut Waste in Vegetable Crop Production. in Sustainability
MDPI AG., 12(20), 8511.
https://doi.org/10.3390/su12208511

Petropoulos SA, Fernandes Â, Plexida S, Pereira C, Dias MI, Calhelha R, Chrysargyris A, Tzortzakis N, Petrović J, Soković M, Ferreira ICFR, Barros L. The Sustainable Use of Cotton, Hazelnut and Ground Peanut Waste in Vegetable Crop Production. in Sustainability. 2020;12(20):8511.
doi:10.3390/su12208511 .

Petropoulos, Spyridon A., Fernandes, Ângela, Plexida, Sofia, Pereira, Carla, Dias, Maria Inês, Calhelha, Ricardo, Chrysargyris, Antonios, Tzortzakis, Nikolaos, Petrović, Jovana, Soković, Marina, Ferreira, Isabel C. F. R., Barros, Lillian, "The Sustainable Use of Cotton, Hazelnut and Ground Peanut Waste in Vegetable Crop Production" in Sustainability, 12, no. 20 (2020):8511,
https://doi.org/10.3390/su12208511 . .

TY  - JOUR
AU  - Petropoulos, Spyridon A.
AU  - Fernandes, Ângela
AU  - Dias, Maria Ines
AU  - Pereira, Carla
AU  - Calhelha, Ricardo C.
AU  - Chrysargyris, Antonios
AU  - Tzortzakis, Nikolaos
AU  - Ivanov, Marija
AU  - Soković, Marina
AU  - Barros, Lillian
AU  - Ferreira, Isabel C. F. R.
PY  - 2020
UR  - https://www.mdpi.com/1420-3049/25/9/2204
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3675
AB  - The aim of this report was to study the effect of salinity (control: 2dS/m, S1: 4 dS/m and S2: 6 dS/m) and harvest time (first harvest on 9 May 2018 and second harvest on 19 April 2018) on the growth and the chemical composition of Centaurea raphanina subsp. mixta plants. The plants of the first harvest were used for the plant growth measurements (fresh weight and moisture content of leaves, rosette diameter, number and thickness of leaves), whereas those of the second harvest were not used for these measurements due to the flowering initiation, which made the leaves unmarketable due to their hard texture. The results of our study showed that C. raphanina subsp. mixta plants can be cultivated under mild salinity (S1 treatment) conditions without severe effects on plant growth and yield, since a more severe loss (27.5%) was observed for the S2 treatment. In addition, harvest time proved to be a cost-effective cultivation practice that allows to regulate the quality of the final product, either in edible form (first harvest) or for nutraceutical and pharmaceutical purposes as well as antimicrobial agents in food products. Therefore, the combination of these two agronomic factors showed interesting results in terms of the quality of the final product. In particular, high salinity (S2 treatment) improved the nutritional value by increasing the fat, proteins and carbohydrates contents in the first harvest, as well as the tocopherols and sugars contents (S1 and S2 treatments, respectively) in the second harvest. In addition, salinity and harvest time affected the oxalic acid content which was the lowest for the S2 treatment at the second harvest. Similarly, the richest fatty acid (α-linolenic acid) increased with increasing salinity at the first harvest. Salinity and harvest time also affected the antimicrobial properties, especially against Staphylococcus aureus, Bacillus cereus and Trichoderma viride, where the extracts from the S1 and S2 treatments showed high effectiveness. In contrast, the highest amounts of flavanones (pinocembrin derivatives) were detected in the control treatment (second harvest), which was also reflected to the highest antioxidant activity (TBARS) for the same treatment. In conclusion, C. raphanina subsp. mixta plants seem to be tolerant to medium salinity stress (S1 treatment) since plant growth was not severely impaired, while salinity and harvesting time affected the nutritional value (fat, proteins, and carbohydrates) and the chemical composition (tocopherols, sugars, oxalic acid, fatty acids), as well as the bioactive properties (cytotoxicity and antimicrobial properties) of the final product.
PB  - MDPI AG
T2  - Molecules
T1  - Chemical Composition and Plant Growth of Centaurea raphanina subsp. mixta Plants Cultivated under Saline Conditions
IS  - 9
VL  - 25
DO  - 10.3390/molecules25092204
SP  - 2204
ER  - 

@article{
author = "Petropoulos, Spyridon A. and Fernandes, Ângela and Dias, Maria Ines and Pereira, Carla and Calhelha, Ricardo C. and Chrysargyris, Antonios and Tzortzakis, Nikolaos and Ivanov, Marija and Soković, Marina and Barros, Lillian and Ferreira, Isabel C. F. R.",
year = "2020",
abstract = "The aim of this report was to study the effect of salinity (control: 2dS/m, S1: 4 dS/m and S2: 6 dS/m) and harvest time (first harvest on 9 May 2018 and second harvest on 19 April 2018) on the growth and the chemical composition of Centaurea raphanina subsp. mixta plants. The plants of the first harvest were used for the plant growth measurements (fresh weight and moisture content of leaves, rosette diameter, number and thickness of leaves), whereas those of the second harvest were not used for these measurements due to the flowering initiation, which made the leaves unmarketable due to their hard texture. The results of our study showed that C. raphanina subsp. mixta plants can be cultivated under mild salinity (S1 treatment) conditions without severe effects on plant growth and yield, since a more severe loss (27.5%) was observed for the S2 treatment. In addition, harvest time proved to be a cost-effective cultivation practice that allows to regulate the quality of the final product, either in edible form (first harvest) or for nutraceutical and pharmaceutical purposes as well as antimicrobial agents in food products. Therefore, the combination of these two agronomic factors showed interesting results in terms of the quality of the final product. In particular, high salinity (S2 treatment) improved the nutritional value by increasing the fat, proteins and carbohydrates contents in the first harvest, as well as the tocopherols and sugars contents (S1 and S2 treatments, respectively) in the second harvest. In addition, salinity and harvest time affected the oxalic acid content which was the lowest for the S2 treatment at the second harvest. Similarly, the richest fatty acid (α-linolenic acid) increased with increasing salinity at the first harvest. Salinity and harvest time also affected the antimicrobial properties, especially against Staphylococcus aureus, Bacillus cereus and Trichoderma viride, where the extracts from the S1 and S2 treatments showed high effectiveness. In contrast, the highest amounts of flavanones (pinocembrin derivatives) were detected in the control treatment (second harvest), which was also reflected to the highest antioxidant activity (TBARS) for the same treatment. In conclusion, C. raphanina subsp. mixta plants seem to be tolerant to medium salinity stress (S1 treatment) since plant growth was not severely impaired, while salinity and harvesting time affected the nutritional value (fat, proteins, and carbohydrates) and the chemical composition (tocopherols, sugars, oxalic acid, fatty acids), as well as the bioactive properties (cytotoxicity and antimicrobial properties) of the final product.",
publisher = "MDPI AG",
journal = "Molecules",
title = "Chemical Composition and Plant Growth of Centaurea raphanina subsp. mixta Plants Cultivated under Saline Conditions",
number = "9",
volume = "25",
doi = "10.3390/molecules25092204",
pages = "2204"
}

Petropoulos, S. A., Fernandes, Â., Dias, M. I., Pereira, C., Calhelha, R. C., Chrysargyris, A., Tzortzakis, N., Ivanov, M., Soković, M., Barros, L.,& Ferreira, I. C. F. R.. (2020). Chemical Composition and Plant Growth of Centaurea raphanina subsp. mixta Plants Cultivated under Saline Conditions. in Molecules
MDPI AG., 25(9), 2204.
https://doi.org/10.3390/molecules25092204

Petropoulos SA, Fernandes Â, Dias MI, Pereira C, Calhelha RC, Chrysargyris A, Tzortzakis N, Ivanov M, Soković M, Barros L, Ferreira ICFR. Chemical Composition and Plant Growth of Centaurea raphanina subsp. mixta Plants Cultivated under Saline Conditions. in Molecules. 2020;25(9):2204.
doi:10.3390/molecules25092204 .

Petropoulos, Spyridon A., Fernandes, Ângela, Dias, Maria Ines, Pereira, Carla, Calhelha, Ricardo C., Chrysargyris, Antonios, Tzortzakis, Nikolaos, Ivanov, Marija, Soković, Marina, Barros, Lillian, Ferreira, Isabel C. F. R., "Chemical Composition and Plant Growth of Centaurea raphanina subsp. mixta Plants Cultivated under Saline Conditions" in Molecules, 25, no. 9 (2020):2204,
https://doi.org/10.3390/molecules25092204 . .

TY  - JOUR
AU  - Pereira, Carla
AU  - Dias, Maria Inês
AU  - Petropoulos, Spyridon A.
AU  - Plexida, Sofia
AU  - Chrysargyris, Antonios
AU  - Tzortzakis, Nikos
AU  - Calhelha, Ricardo C.
AU  - Ivanov, Marija
AU  - Stojković, Dejan
AU  - Soković, Marina
AU  - Barros, Lillian
AU  - C F R Ferreira, Isabel
PY  - 2019
UR  - https://www.mdpi.com/1420-3049/24/24/4494
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/3577
AB  - In the present study, the effect of biostimulants application on the nutritional quality and bioactive properties of spinach cultivated in protected environment under water stress conditions was evaluated. For this purpose, four commercially available biostimulant products (Megafol (MEG), Aminovert (AM), Veramin Ca (V), Twin Antistress (TA), and two spinach genotypes (Fuji F1 and Viroflay) were tested under two irrigation regimes (normal irrigation (W+), and water-holding (W-). Fat and carbohydrates content was favored by water stress when Megafol (MEGW+) and Veramin (VW+) were applied on Fuji plants, while calorific value was also increased by MEGW+ treatment. In contrast, protein and ash content increased when AMW- and TAW+ were applied on Viroflay plants. Raffinose and glucose were the most abundant sugars, followed by sucrose and fructose, with the highest contents recorded for Fuji plants when AMW+ (fructose, glucose and total carbohydrates), CW- (sucrose), and TAW- (raffinose) treatments were applied. Regarding organic acids, oxalic and malic acid which had the highest contents for the TAW- (Viroflay plants) and AMW- (Fuji plants) treatments, respectively. α- and γ-tocopherol were the only isoforms detected with MEGW- and VW- inducing the biosynthesis of α-tocopherol, while AMW+ increased γ-tocopherol content in Fuji plants. The main fatty acids were α-linolenic and linoleic acids which were detected in the highest amounts in AMW-, AMW+, and TAW+ the former and in AMW-, VW-, and CW+ the latter. Regarding phenolic compounds content, peak 12 (5,3',4'-Trihydroxy-3-methoxy-6:7-methylenedioxyflavone-4'-glucuronide) was the most abundant compound, especially in Viroflay plants under normal irrigation and no biostimulants added (CW-). The antioxidant and cytotoxic activity of the tested samples did not show promising results when compared with the positive controls, while a variable antibacterial activity was recorded depending on the tested biostimulant, irrigation regime and genotype. In conclusion, a variable effect of the tested biostimulants and irrigation regimes was observed on bioactive properties and chemical composition of both spinach genotypes which highlights the need for further research in order to make profound conclusions regarding the positive effects of biostimulants under water stress conditions.
PB  - Multidisciplinary Digital Publishing Institute
T2  - Molecules (Basel, Switzerland)
T1  - The Effects of Biostimulants, Biofertilizers and Water-Stress on Nutritional Value and Chemical Composition of Two Spinach Genotypes (Spinacia oleracea L.).
IS  - 24
VL  - 24
DO  - 10.3390/molecules24244494
SP  - 4494
ER  - 

@article{
author = "Pereira, Carla and Dias, Maria Inês and Petropoulos, Spyridon A. and Plexida, Sofia and Chrysargyris, Antonios and Tzortzakis, Nikos and Calhelha, Ricardo C. and Ivanov, Marija and Stojković, Dejan and Soković, Marina and Barros, Lillian and C F R Ferreira, Isabel",
year = "2019",
abstract = "In the present study, the effect of biostimulants application on the nutritional quality and bioactive properties of spinach cultivated in protected environment under water stress conditions was evaluated. For this purpose, four commercially available biostimulant products (Megafol (MEG), Aminovert (AM), Veramin Ca (V), Twin Antistress (TA), and two spinach genotypes (Fuji F1 and Viroflay) were tested under two irrigation regimes (normal irrigation (W+), and water-holding (W-). Fat and carbohydrates content was favored by water stress when Megafol (MEGW+) and Veramin (VW+) were applied on Fuji plants, while calorific value was also increased by MEGW+ treatment. In contrast, protein and ash content increased when AMW- and TAW+ were applied on Viroflay plants. Raffinose and glucose were the most abundant sugars, followed by sucrose and fructose, with the highest contents recorded for Fuji plants when AMW+ (fructose, glucose and total carbohydrates), CW- (sucrose), and TAW- (raffinose) treatments were applied. Regarding organic acids, oxalic and malic acid which had the highest contents for the TAW- (Viroflay plants) and AMW- (Fuji plants) treatments, respectively. α- and γ-tocopherol were the only isoforms detected with MEGW- and VW- inducing the biosynthesis of α-tocopherol, while AMW+ increased γ-tocopherol content in Fuji plants. The main fatty acids were α-linolenic and linoleic acids which were detected in the highest amounts in AMW-, AMW+, and TAW+ the former and in AMW-, VW-, and CW+ the latter. Regarding phenolic compounds content, peak 12 (5,3',4'-Trihydroxy-3-methoxy-6:7-methylenedioxyflavone-4'-glucuronide) was the most abundant compound, especially in Viroflay plants under normal irrigation and no biostimulants added (CW-). The antioxidant and cytotoxic activity of the tested samples did not show promising results when compared with the positive controls, while a variable antibacterial activity was recorded depending on the tested biostimulant, irrigation regime and genotype. In conclusion, a variable effect of the tested biostimulants and irrigation regimes was observed on bioactive properties and chemical composition of both spinach genotypes which highlights the need for further research in order to make profound conclusions regarding the positive effects of biostimulants under water stress conditions.",
publisher = "Multidisciplinary Digital Publishing Institute",
journal = "Molecules (Basel, Switzerland)",
title = "The Effects of Biostimulants, Biofertilizers and Water-Stress on Nutritional Value and Chemical Composition of Two Spinach Genotypes (Spinacia oleracea L.).",
number = "24",
volume = "24",
doi = "10.3390/molecules24244494",
pages = "4494"
}

Pereira, C., Dias, M. I., Petropoulos, S. A., Plexida, S., Chrysargyris, A., Tzortzakis, N., Calhelha, R. C., Ivanov, M., Stojković, D., Soković, M., Barros, L.,& C F R Ferreira, I.. (2019). The Effects of Biostimulants, Biofertilizers and Water-Stress on Nutritional Value and Chemical Composition of Two Spinach Genotypes (Spinacia oleracea L.).. in Molecules (Basel, Switzerland)
Multidisciplinary Digital Publishing Institute., 24(24), 4494.
https://doi.org/10.3390/molecules24244494

Pereira C, Dias MI, Petropoulos SA, Plexida S, Chrysargyris A, Tzortzakis N, Calhelha RC, Ivanov M, Stojković D, Soković M, Barros L, C F R Ferreira I. The Effects of Biostimulants, Biofertilizers and Water-Stress on Nutritional Value and Chemical Composition of Two Spinach Genotypes (Spinacia oleracea L.).. in Molecules (Basel, Switzerland). 2019;24(24):4494.
doi:10.3390/molecules24244494 .

Pereira, Carla, Dias, Maria Inês, Petropoulos, Spyridon A., Plexida, Sofia, Chrysargyris, Antonios, Tzortzakis, Nikos, Calhelha, Ricardo C., Ivanov, Marija, Stojković, Dejan, Soković, Marina, Barros, Lillian, C F R Ferreira, Isabel, "The Effects of Biostimulants, Biofertilizers and Water-Stress on Nutritional Value and Chemical Composition of Two Spinach Genotypes (Spinacia oleracea L.)." in Molecules (Basel, Switzerland), 24, no. 24 (2019):4494,
https://doi.org/10.3390/molecules24244494 . .