Chemical and Nutritional Characterization of the Different Organs of Taif’s Rose ( Rosa damascena Mill. var. trigintipetala ) and Possible Recycling of the Solid Distillation Wastes in Taif City, Saudi Arabia

Esmat F. Ali (), Hatim M. Al-Yasi, Ali Majrashi, Emad A. Farahat, Ebrahem M. Eid and Tarek M. Galal
Additional contact information
Esmat F. Ali: Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Hatim M. Al-Yasi: Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Ali Majrashi: Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Emad A. Farahat: Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo 11790, Egypt
Ebrahem M. Eid: Biology Department, College of Science, King Khalid University, P.O. Box 9004, Abha 61321, Saudi Arabia
Tarek M. Galal: Department of Biology, College of Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia

Agriculture, 2022, vol. 12, issue 11, 1-19

Abstract: The objective of the current study was to examine the chemical composition and biological functions of the various Taif’s rose (TR) organs and floral solid distillation wastes (SDW). Additionally, it assessed the SDW’s potential use in animal feed and potential health applications. For chemical and biological analyses, the plant stems, leaves, and flowers as well as the SDW of TR were gathered from four farms in the Al-Shafa highland region of Taif, Saudi Arabia. The highest levels of cardiac glycosides, flavonoids, and phenolics were found in the flowers (7.66 mg securiaside g −1 , 16.33 mg GAE g −1 , and 10.90 mg RUE g −1 , respectively), while the highest carbohydrate and alkaloid contents were found in the TR leaves (2.09% and 9.43 mg AE g −1 , respectively) with no significant differences from the SDW. Quercetin, apigenin, and rutin flavonoids, as well as isocorydine and boldine alkaloids, were found in larger concentrations in the flowers and floral SDW than in the leaves and stems. The various TR flower extracts were effective against Gram-negative and -positive bacteria but had no effect on fungal strains, but the SDW’s methanol extract was only effective against fungi. The plant stem had the highest N, K, and Mg contents (138, 174, and 96.12 mg kg −1 , respectively), while the leaves had the highest P and Ca values (6.58 and 173.93 mg kg −1 , respectively). The leaves had the highest contents of total carbohydrates and acid detergent fibre (59.85 and 3.93%, respectively), while the stems had the highest total protein and acid detergent fibre (8.66 and 24.17%, respectively), and the SDW had the highest fats and crude fiber (0.57 and 36.52%, respectively). The highest amounts of digestible crude protein, gross energy, and total dissolved nutrients (TDN) (4.52% and 412.61 Mcal kg −1 ) were found in the plant stem and flowers, respectively. The results of the current experiment showed that the TDN contents of the various organs and the SDW of TR are suitable for mature dry gestating beef cows. It was determined that, in addition to the SDW’s potential usage as an ingredient in animal feed, various plant parts and TR’s SDW can be utilized for a variety of medical reasons.

Keywords: macronutrients; phytochemistry; distillation wastes; rose flowers; biological activity (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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