Stability of fatty acids and leaf protein concentrate of Persian clover (Trifolium resupinatum)

1990 ◽  
Vol 40 (4) ◽  
pp. 283-288 ◽  
Author(s):  
Mohammad Nazir ◽  
Farrukh H. Shah
Keyword(s):  
Fatty Acids ◽  
Leaf Protein ◽  
Protein Concentrate ◽  
Leaf Protein Concentrate ◽  
Persian Clover ◽  
Trifolium Resupinatum

scholarly journals Finding valuable bioactive components from Jerusalem artichoke (Helianthus tuberosus L.) leaf protein concentrate in a green biorefinery concept

2019 ◽  
Author(s):  
László Kaszás ◽  
Tarek Alshaal ◽  
Hassan El-Ramady ◽  
Zoltán Kovács ◽  
Judit Koroknai ◽  
...  
Keyword(s):  
Amino Acids ◽  
Fatty Acids ◽  
Essential Fatty Acids ◽  
Jerusalem Artichoke ◽  
Leaf Protein ◽  
Basic Material ◽  
Ionization Mass ◽  
Protein Concentrate ◽  
Esi Ms ◽  
Leaf Protein Concentrate

AbstractJerusalem artichoke is widely known for its inulin-enriched tubers. Recently the opportunity has been arisen to involve the whole plant in biorefinery concept due to its high lignocellulose biomass and tuber production. This paper focuses on the repeatedly harvestable green biomass of Jerusalem artichoke. Ultra-High Performance Liquid Chromatography-Electrospray Ionization/Mass Spectrometry (UHPLC-ESI-MS) was applied to identify the phytochemicals in Jerusalem artichoke leaf protein concentrate (JAPC) thermally extracted from green biomass of three clones, i.e., Alba, Fuseau and Kalevala. Amino acid and fatty acid profiles as well as yield of JAPC were also analyzed. The UHPLC-ESI-MS analyses showed that no toxic phytochemicals were identified in JAPC. The results revealed, also, that JAPC is not only essential-amino acids-rich but also contains substantial amounts of polyunsaturated fatty acids (66-68%) such as linolenic and linoleic acids. Linolenic acid represented 39-43% of total lipid content; moreover, the ratio between ω-6 and ω-3 essential fatty acids in JAPC was ∼0.6: 1. Using UHPLC-ESI-MS, the following hydroxylated methoxyflavones were for the first time identified in JAPC, i.e., dimethoxy-tetrahydroxyflavone, dihydroxy-methoxyflavone, hymenoxin and nevadensin. These compounds are medically important since they are referred to as anti-cancer, anti-inflammatory and antioxidants. Also, liquiritigenin - estrogenic-like compound - was identified in JAPC alongside the following terpenes, i,e., loliolide and dihydroactinidiolide. However, no remarkable differences of phytochemicals, fatty acids and amino acids composition were seen among Jerusalem artichoke clones. The green biomass of tested clones ranged between 5 to 5.6 kg m-2 and JAPC yield varied from 28.6 to 31.2 g DM kg-1 green biomass with total protein content, on average, of 33.3%. According to our knowledge, this paper is the first scientific report highlighting bioactive substances in JAPC such as PUFA phytochemicals. These results clearly prove that JAPC is a valuable product which can direct towards human and animal nutrition as well as it can serve as basic material for different industrial purposes.

scholarly journals Identification of Bioactive Phytochemicals in Leaf Protein Concentrate of Jerusalem Artichoke (Helianthus tuberosus L.)

Plants ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 889
Author(s):  
László Kaszás ◽  
Tarek Alshaal ◽  
Hassan El-Ramady ◽  
Zoltán Kovács ◽  
Judit Koroknai ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Nutritional Value ◽  
Jerusalem Artichoke ◽  
Total Lipid Content ◽  
Mass Spectrometry Analysis ◽  
Leaf Protein ◽  
Total Protein Content ◽  
Protein Concentrate ◽  
Leaf Protein Concentrate ◽  
Bioactive Phytochemicals

Jerusalem artichoke (JA) is widely known to have inulin-rich tubers. However, its fresh aerial biomass produces significant levels of leaf protein and economic bioactive phytochemicals. We have characterized leaf protein concentrate (JAPC) isolated from green biomass of three Jerusalem artichoke clones, Alba, Fuseau, and Kalevala, and its nutritional value for the human diet or animal feeding. The JAPC yield varied from 28.6 to 31.2 g DM kg−1 green biomass with an average total protein content of 33.3% on a dry mass basis. The qualitative analysis of the phytochemical composition of JAPC was performed by ultra-high performance liquid chromatography-electrospray ionization-Orbitrap/mass spectrometry analysis (UHPLC-ESI-ORBITRAP-MS/MS). Fifty-three phytochemicals were successfully identified in JAPC. In addition to the phenolic acids (especially mono- and di-hydroxycinnamic acid esters of quinic acids) several medically important hydroxylated methoxyflavones, i.e., dimethoxy-tetrahydroxyflavone, dihydroxy-methoxyflavone, hymenoxin, and nevadensin, were detected in the JAPC for the first time. Liquiritigenin, an estrogenic-like flavanone, was measured in the JAPC as well as butein and kukulkanin B, as chalcones. The results also showed high contents of the essential amino acids and polyunsaturated fatty acids (PUFAs; 66-68%) in JAPC. Linolenic acid represented 39–43% of the total lipid content; moreover, the ratio between ω-6 and ω-3 fatty acids in the JAPC was ~0.6:1. Comparing the JA clones, no major differences in phytochemicals, fatty acid, or amino acid compositions were observed. This paper confirms the economic and nutritional value of JAPC as it is not only an alternative plant protein source but also as a good source of biological valuable phytochemicals.

Evaluation of leaf protein concentrate from Beta vulgaris and Daucus carota as a substitute for soybean meal in Oreochromis niloticus fingerlings diets

2021 ◽  
Author(s):  
Mohamed Salah Ayyat ◽  
Gamal Abdel‐Rahman ◽  
Ahmed Mohamed Nabil Ayyat ◽  
Mohamed S. Abdel‐Rahman ◽  
Adham A. Al‐Sagheer
Keyword(s):  
Beta Vulgaris ◽  
Soybean Meal ◽  
Daucus Carota ◽  
Oreochromis Niloticus ◽  
Leaf Protein ◽  
Protein Concentrate ◽  
Leaf Protein Concentrate

Edible Protein from Parthenium hysterophorus

1978 ◽  
Vol 14 (1) ◽  
pp. 93-94 ◽  
Author(s):  
V. A. Savangikar ◽  
R. N. Joshi
Keyword(s):  
Amino Acid ◽  
Amino Acid Composition ◽  
Acid Composition ◽  
Parthenium Hysterophorus ◽  
Leaf Protein ◽  
Protein Concentrate ◽  
Nutritional Properties ◽  
Leaf Protein Concentrate ◽  
Forage Species ◽  
Edible Protein

SUMMARYLeaf protein concentrate was prepared from the weed Parthenium hysterophorus L. and the nutritional properties of this preparation were studied in relation to its amino acid composition and digestibility. The product and the residual fibre closely resembled similar products made from conventional forage species.

Nutritive value of leaf-protein concentrate from potato haulm for rats and chicks

1981 ◽  
Vol 6 (4) ◽  
pp. 413-419 ◽  
Author(s):  
Piotr Hanczakowski ◽  
BogumiŁa Skraba ◽  
Maciej Młodkowski
Keyword(s):  
Nutritive Value ◽  
Leaf Protein ◽  
Protein Concentrate ◽  
Leaf Protein Concentrate
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