Extraction and characterization of bio-effectors from agro-food processing by-products as plant growth promoters

被引：5

作者：

Al Chami Z. ^{[1
]}

Alwanney D. ^{[1
]}

De Pascali S.A. ^{[2
]}

Cavoski I. ^{[1
]}

Fanizzi F.P. ^{[2
]}

机构：

[1] CIHEAM - Istituto Agronomico Mediterraneo di Bari (IAMB), Via Ceglie 9, Valenzano, 70010, BA

[2] Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Centro Ecotekne strada provinciale Lecce Monteroni, Lecce, 73100, LE

来源：

Chemical and Biological Technologies in Agriculture | / 1卷 / 1期

关键词：

Barley; Bio-effectors; By-product; Fennel; Green extraction; Lemon; Nuclear magnetic resonance (NMR);

D O I：

10.1186/s40538-014-0017-x

中图分类号：

学科分类号：

摘要：

Background: Recently, a novel concept ‘bio-effectors’ rose on to describe a group of products that are able to improve plant performance rather than fertilizers. Agro-food processing residues and by-products potentially represent important sources of bio-effectors but they are currently not properly taken in consideration. To fulfill this gap, in these study, three food processing by-products: (i) brewers' spent grain, (ii) fennel processing residues, and (iii) lemon processing residues were chosen as bio-effector candidates. Raw materials were chemically characterized, and green extraction methodology was optimized by using water, ethanol, and their mixture based on the extraction yields. Aqueous extracts were used for seed germination bioassays on Lepidium sativum seeds to evaluate their potential bioactivities. Thereafter, the extracts were chemically characterized and metabolites were detected by 1D and 2D NMR spectroscopy. Results: Results are summarized as follows: (i) raw materials showed an interesting nutritional content; (ii) aqueous extraction resulted higher yield more than other used solvent; (iii) at high solvent extraction ratio, aqueous extracts were not phytotoxic but enhanced seed germination and root elongation; (iv) all aqueous extracts are differently rich in nutrients, amino-acids, sugars, and other low molecular weight molecule compounds. Conclusions: This study confirmed that efficient and simple recovery of bioactive compounds other than nutrients from agro-food processing by-products appear to be the new frontier in their valorization. [Figure not available: see fulltext. Caption: ᅟ]. © 2014, Al Chami et al.; licensee Springer.

引用

共 67 条

[51]

Godelmann R., Fang F., Humpfer E., Scutz B., Bansbach M., Schafer H., Spraul M., Targeted and nontargeted wine analysis by <sup>1</sup>H NMR spectroscopy combined with multivariate statistical analysis. Differentiation of important parameters: Grape variety, geographical origin, year of vintage, J Agric Food Chem, 61, 23, pp. 5610-5619, (2013)

[52]

Del Coco L., De Pascali S.A., Fanizzi F.P., <sup>1</sup>H NMR spectroscopy and multivariate analysis of monovarietal EVOOs as a tool for modulating Coratina-based blends, Foods, 3, 2, pp. 238-249, (2014)

[53]

De Pascali S.A., Coletta A., Del Coco L., Basile T., Gambacorta G., Fanizzi F.P., Viticultural practice and winemaking effects on metabolic profile of Negroamaro, Food Chem, 161, pp. 112-119, (2014)

[54]

Bohme M., Effects of lactate, humate and Bacillus subtilis on the growth of tomato plants in hydroponic systems, Acta Hort, 481, pp. 231-239, (1999)

[55]

Bohme M., Ouahid A., Shaban N., Reaction of some vegetable crops to treatments with lactate as bioregulator and fertilizer, Acta Hort, 514, pp. 33-40, (2000)

[56]

Pracharoenwattana I., Zhou W.X., Keech O., Francisco P.B., Udomchalothorn T., Tschoep H., Stitt M., Gibon Y., Smith S.M., Arabidopsis has a cytosolic fumarase required for the massive allocation of photosynthate into fumaric acid and for rapid plant growth on high nitrogen, Plant J, 62, 5, pp. 785-795, (2010)

[57]

Mussatto S., Biotechnological potential of brewing industry by-products, Biotechnology for agro-industrial residues utilisation, (2009)

[58]

Huige N., Brewery by-products and effluents, Handbook of brewing, (1994)

[59]

Santos M., Jimenez J.J., Bartolome B., Gomez-Cordoves C., del Nozal M.J., Variability of brewer's spent grain within a brewery, Food Chem, 80, 1, pp. 17-21, (2003)

[60]

Madhujith T., Shahidi F., Antioxidative and antiproliferative properties of selected barley (Hordeum vulgarae L.) cultivars and their potential for inhibition of low-density lipoprotein (LDL) cholesterol oxidation, J Agr Food Chem, 55, 13, pp. 5018-5024, (2007)

← 1 2 3 4 5 6 7 →