Scopus
🔓 Açık Erişim
The strength of the nutrient solution modulates the functional profile of hydroponically grown lettuce in a genotype-dependent manner
Foods · Eylül 2020
Makale Bilgileri
DergiFoods
Yayın TarihiEylül 2020
Cilt / Sayfa9
Scopus ID2-s2.0-85090233781
Erişim🔓 Açık Erişim
Özet
Considering that functional components of plant foods are mainly secondary-metabolism products, we investigated the shaping of health-promoting compounds in hydroponically grown butterhead lettuce (Lactuca sativa L. var. capitata) as a function of the strength of the nutrient solution utilized. To this aim, untargeted metabolomics profiling, in vitro antioxidant capacity (total phenolics, 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,20-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS), cupric reducing antioxidant capacity (CUPRAC), and ferric reducing antioxidant power (FRAP) assays), and the inhibition of selected enzyme activities were investigated in two butterhead lettuce cultivars with different pigmentation, i.e., green and red Salanova. Full-strength nutrition, together with half- and quarter-strength solutions of macronutrients, was tested. Our results indicate that by reducing the nutrients strength, we could elicit a distinctive shaping of the phenolic profile of lettuce. It is noteworthy that only specific classes of phenolics (namely, lignans and phenolic acids, followed by flavones and anthocyanins) were modulated by the induction of nutritional eustress (fold-change values in the range between −5 and +11). This indicates that specific responses, rather than a generalized induction of phenolic compounds, could be observed. Nonetheless, a genotype-dependent response could be observed, with the red cultivar being much more responsive to nutritional deprivation than the green Salanova lettuce. Indeed, analysis of variance (ANOVA) confirmed a genotype x nutrition interaction in red Salanova (p < 0.001). As a consequence of the changes in phenolic composition, also the antioxidant capacity (p < 0.001) and amylase inhibition (p < 0.001) properties were affected by the growing conditions. However, the effect on cholinesterase and tyrosinase inhibition was poorly affected by the nutritional strength. Provided that yields are not compromised, the application of a controlled nutritional eustress in hydroponically cultivated lettuce may represent a valuable strategy to produce food with tailored functional features in a sustainable manner.
Yazarlar (12)
1
Biancamaria Senizza
2
Leilei Zhang
ORCID: 0000-0002-9278-0459
3
Begoña Miras-Moreno
4
Laura Righetti
5
Gokhan Zengin
ORCID: 0000-0001-6548-7823
6
Gunes Ak
7
Renato Bruni
8
Luigi Lucini
ORCID: 0000-0002-5133-9464
9
Maria Isabella Sifola
10
Christophe El-Nakhel
11
Giandomenico Corrado
12
Youssef Rouphael
Anahtar Kelimeler
Antioxidants
Eustress
Lactuca sativa
Metabolomics
Polyphenols
Kurumlar
Selçuk Üniversitesi
Selçuklu Turkey
Università Cattolica del Sacro Cuore, Campus di Piacenza e Cremona
Piacenza Italy
Università degli Studi di Napoli Federico II
Naples Italy
Università di Parma
Parma Italy
Metrikler
26
Atıf
12
Yazar
5
Anahtar Kelime