Physicochemical properties of Roselle (Hibiscus sabdariffa L.) seeds oil (Elrahad-1) in North Kordofan, Sudan

Eltayeib, Ali Abdella; Elaziz, Ali Abd

doi:10.31254/jsir.2014.3606

Cited by 13 publications

(5 citation statements)

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“…However, the method utilised for the extraction of seeds oil was not mentioned. On the other hand, Eltayeib and Abd Elaziz [31] has reported a peroxide value of 4.6 meq/kg for roselle seeds oil extracted through solvent extraction using hexane. While, Naeem et al [10] has reported the peroxide value of roselle seeds oil to be 1.01 meq/kg for oil extracted through supercritical CO2, 1.59 meq/kg through hydraulic-press, 2.14 meq/kg through screw-press and 4.57 meq/kg through solvent extraction with hexane.…”

Section: Physicochemical Propertiesmentioning

confidence: 97%

Physical and chemical characterization of oil extracted from Citrofortunella microcarpa, Hibiscus sabdariffa and Artocarpus heterophyllus seeds

Fai

Cheok²

2022

PROGEE

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Consumable plant oils had been related with highly nutritional content and antioxidant source that provide crucial health benefits. Hence, in this study a series of experimental work and analysis were conducted to evaluate the practicability and the properties of oil extraction from seeds of calamansi (Citrofortunella microcarpa), roselle (Hibiscus sabdariffa), and jackfruit (Artocarpus heterophyllus). The yield, antioxidant activities, iodine value, saponification value, and peroxide value of extracted seed oils were studied. Results obtained shown that among the three seeds species, calamansi seeds resulted in the highest yield of 32.7%, followed by roselle seeds with a yield of 11.00% and lastly, jackfruit seeds with the highest yield obtained was only 0.60%. Antioxidant activities conducted has shown that roselle with EC50 of 49.04 mg/mL has greater antioxidant properties as compared with calamansi with EC50 of 109.74 mg/mL. Iodine value determined for unheated oil has resulted in a value of 100.83 g I2/100g oil and 110.60 g I2/100g oil that has classified roselle and calamansi seeds oil under the non-drying oil categories and heating effect shown a slight decrease in the iodine value due to loss of unsaturation within the oil. Both calamansi and roselle seed oils did not show significance reduction in saponification value upon heating. Peroxide value for roselle and calamansi seeds oil under unheated condition was determined to be 10.36 meq/kg and 24.86 meq/kg respectively.

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Section: Physicochemical Propertiesmentioning

confidence: 97%

Physical and chemical characterization of oil extracted from Citrofortunella microcarpa, Hibiscus sabdariffa and Artocarpus heterophyllus seeds

Fai

Cheok²

2022

PROGEE

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“…The combination (100 mgm.l -1 growth regulator + spray 75 mgm.l -1 nano iron) excelled and gave the highest average for the above parameter which amounted to 449.33 mgm.l -1 While the interaction treatment (without adding growth regulator and without spraying nano iron) gave the lowest average of 96.36 mgm L -1 . The results presented in Tables (12,11,10,9,8,7,6)) indicate the treatment of soaking seeds with gibberellin growth regulator at a level of 100 mgm.l -1 significantly increase and giving the highest averages for the studied volatile oils and phenolic compounds, and the reason could be due to The same tables also indicate that spraying nano iron at a level of 75 mgm.L -1 was significantly excelled in increasing the averages of the studied traits. And through tables (6)(7)(8)(9)(10)(11)(12), it is noted that there are significant differences in the content of the roots of the sweet bean plant from oily and phenolic compounds.…”

Section: The Content Of the Roots Of The Phenolic Compound Ellage Acidmentioning

confidence: 79%

“…The results presented in Tables (12,11,10,9,8,7,6)) indicate the treatment of soaking seeds with gibberellin growth regulator at a level of 100 mgm.l -1 significantly increase and giving the highest averages for the studied volatile oils and phenolic compounds, and the reason could be due to The same tables also indicate that spraying nano iron at a level of 75 mgm.L -1 was significantly excelled in increasing the averages of the studied traits. And through tables (6)(7)(8)(9)(10)(11)(12), it is noted that there are significant differences in the content of the roots of the sweet bean plant from oily and phenolic compounds. This may be due to the role of indirect microelements in stimulating the formation of carbohydrates and the formation of amino acids The level of plant hormones, especially those that lead to increased cell division and elongation [16].…”

Section: The Content Of the Roots Of The Phenolic Compound Ellage Acidmentioning

confidence: 79%

“…It contributes to increasing the process of pollination and fertilization through the coloration of flowers in bright colors that attract insects, and units of Phenylpropine increase the hardness of tissues as a result of its formation of lignin compounds in the polymerization process, It also contributes to the transfer of electrons during photosynthesis. Many recent studies indicated the role of phenols in increasing plant tolerance to various stress conditions [6]. Plant growth regulators are among the tools of modern agricultural techniques that, with their low concentrations, work to increase production and improve its quality due to their impact on the physiological and biological processes inside the plant [7].…”

Section: Introductionmentioning

confidence: 99%

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Effect of the Growth Regulator Gibberellins and Nano Iron Spraying on the Content of Oils, Phenolic Compounds and Flavonoids in the Roots of Fennel Plant

Al-Mamouri

Asl

Hussien

2023

IOP Conf. Ser.: Earth Environ. Sci.

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A field experiment was carried out for the autumn season 2021 in Al-Watifia area - Al-Musauib project / Babylon province, with coordinates (longitude (44°22′ and 44°31′ east) and latitudes (32°32′ and 32°36′ north) and in a loamy soil to study gibberellin and spray Nano iron fertilizer in the roots of the local cultivar Foeniculum vulgare Mill. it used 4 levels of gibberellin growth regulator (0, 50, 100, 150 mgm L-1) with four levels of nano-iron (0, 25, 50, 75 mgm L-1). A factorial experiment was conducted by Randomized Completely Block Design (RCBD) with three replicates, and the averages of parameters compared with the LSD test of 5%. The results indicated that: The treatment of gibberellin growth regulator at a level of 100 mgm L-1 significantly increasing value of root content of the volatile oil Estagole, Carene and - Pinene α gave highest averages amounted to 318.10, 66.16 and 56.50 mg L-1, respectively. While the treatment of spraying nano iron with a level of (75 mgm L-1) was increased and gave the highest averages of 319.67, 65.26 and 47,53 mgm L-1. In terms of the best interaction treatment between them, the interaction between the two factors (gibberellin at a level of 100 mgm L-1) + Iron sprayed at level of 75 mgm L-1) was increased and it gave the highest averages of the above oily compounds, which were 488.08, 110.25 and 81.60 mgm L-1, respectively.As for the roots’ content of phenolic and flavonoid compounds, the concentration of gibberellin (100 mgm L-1) was significantly increase in the roots’ content of phenolic and flavonoid compounds Rutin, Eriocitin, and Quercetin, by giving them the highest averages amounted to 74,68, 64,24, 359,35 mgm L-1, respectively. As for the phenolic compound Ellage acid, it did not differ significantly from the 150 level of gibberellin, as it gave average of 41.97, and the level of 100 mgm L-1 had an average of 41.70, As for iron spray, the level (75 mgm L-1) was increasing the roots’ content of phenolic compounds and flavonoids Rutin, Ellage acid, Eriocitin and Quercetin by giving them the highest averages of 74.24, 44.31, 62.67 and 365.60 mgm L-1, respectively. While the interaction between the two factors (gibberellin at a level of 100 mgm L-1 + iron spray at a level of 75 mgm L-1) gave the highest averages of the above phenolic compounds amounting to 89.17, 52.13, 65.32 and 449.33 mgm L-1, respectively.

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“…The seed of roselle is regarded as a high-protein and antioxidant-rich food. Roselle seed is a good source of oil (21.1%), with oleic and linoleic acids being the primary unsaturated fatty acids (Eltayeib and Elaziz, 2014).…”

Section: Roselle (Hibiscus Sabdariffa L)mentioning

confidence: 99%

Improving the BRIS Soil management and practices for growing roselle (Hibiscus sabradiffa L.)

Mohd Razali,

Salmizi

2023

JTRSS

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Beach ridges with interspersed swales (BRIS), commonly referred to as BRIS soil or sandy soil, are extensively distributed along the eastern coast of Peninsular Malaysia. Despite the challenging nature of the lowland agricultural soil, characterised by its sandy texture and sterility, agricultural activities on BRIS soils have experienced an upward trend in recent times. The objective of this study was to conduct a literature review on the challenges and possibilities of roselle (Hibiscus sabdariffa L.) growth in the BRIS soil environment. Soil concerns can be classified into three categories: physical, chemical, and biological. The soil in BRIS is characterised by its acidic nature and low CEC values, with sand content occasionally reaching as high as 95 percent. Significant challenges associated with sandy soil conditions encompass soil water repellency (SWR), soil compaction, surface crust formation, soil erosion, low fertility, and Cation Exchange Capacity (CEC) value, as well as nutrient leaching into the groundwater, leading to pollution. The roselle plant is currently being commercially cultivated in the state of Terengganu as a substitute for tobacco in BRIS soil. This is due to the plant's exceptional aeration and deep root zone. However, owing to its diminished fertility, its output is restricted. This book concentrates on the challenges related to BRIS soil and environmental concerns, including issues such as inadequate nutrient levels, weak soil structure, and excessive drainage. This review comprehensively elucidates the management strategies for sandy soil in the context of agricultural operations and evolving climatic conditions, thereby contributing to the advancement of research on the prospective cultivation of roselle.

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Physicochemical properties of Roselle (Hibiscus sabdariffa L.) seeds oil (Elrahad-1) in North Kordofan, Sudan

Cited by 13 publications

References 0 publications

Physical and chemical characterization of oil extracted from Citrofortunella microcarpa, Hibiscus sabdariffa and Artocarpus heterophyllus seeds

Physical and chemical characterization of oil extracted from Citrofortunella microcarpa, Hibiscus sabdariffa and Artocarpus heterophyllus seeds

Effect of the Growth Regulator Gibberellins and Nano Iron Spraying on the Content of Oils, Phenolic Compounds and Flavonoids in the Roots of Fennel Plant

Improving the BRIS Soil management and practices for growing roselle (Hibiscus sabradiffa L.)

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