Biosynthesis of Royal Jelly Acid from Sucrose

Brown, William H.; Felauer, Ethel E.; Smith, M. V.

doi:10.1038/195075a0

Cited by 4 publications

(3 citation statements)

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“…The results of the present study are consistent with those of previous studies. The component 10-HDA is the most important bioactive substance in royal jelly and sucrose is thought to play a key role in the biosynthesis of 10-HDA [ 21 ]. However, we found that the 10-HDA levels in RJ from sucrose-fed groups were not affected.…”

Section: Discussionmentioning

confidence: 99%

Effects of Sucrose Feeding on the Quality of Royal Jelly Produced by Honeybee Apis mellifera L.

Wang,

Ma,

Wang

et al. 2023

Insects

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Royal jelly (RJ) is a highly nutritious secretion of the honeybees’ hypopharyngeal glands (HPGs). During RJ production, colonies are occasionally subjected to manual interventions, such as sucrose feeding for energy supplementation. This study aimed to assess the impact of sucrose feeding on the composition of RJ. The results indicated that RJ obtained from sucrose-fed colonies exhibited significantly higher levels of fructose, alanine, glycine, tyrosine, valine, and isoleucine compared to the honey-fed group. However, no significant differences were observed in terms of moisture content, crude protein, 10-HDA, glucose, sucrose, minerals, or other amino acids within the RJ samples. Moreover, sucrose feeding did not have a significant effect on midgut sucrase activity, HPGs development, or the expression levels of MRJP1 and MRJP3 in nurse bees. Unsealed stored food samples from sucrose-fed bee colonies demonstrated significantly higher sucrose levels compared to sealed combs and natural honey. Additionally, natural honey exhibited higher moisture and Ca levels, as well as lower levels of Zn and Cu, in comparison to honey collected from bee colonies fed sucrose solutions. Based on these findings, we conclude that sucrose feeding has only a minor impact on the major components of RJ.

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Section: Discussionmentioning

confidence: 99%

Effects of Sucrose Feeding on the Quality of Royal Jelly Produced by Honeybee Apis mellifera L.

Wang,

Ma,

Wang

et al. 2023

Insects

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“…The biosynthesis of 10-HDA has gathered large attention from the scientific community. Brown and colleagues suggested sucrose as the precursor of 10-HDA after its administration in worker bees and subsequent monitoring of such fatty acids [53]. Plettner and coworkers moved forward, suggesting a de novo fatty acids synthesis with stearic acid being the precursor [54].…”

Section: Fatty and Organic Acidsmentioning

confidence: 99%

Fingerprinting Chemical Markers in the Mediterranean Orange Blossom Honey: UHPLC-HRMS Metabolomics Study Integrating Melissopalynological Analysis, GC-MS and HPLC-PDA-ESI/MS

Kasiotis

Baira

Iosifidou³

et al. 2023

Molecules

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(1) Background: Citrus honey constitutes a unique monofloral honey characterized by a distinctive aroma and unique taste. The non-targeted chemical analysis can provide pivotal information on chemical markers that differentiate honey based on its geographical and botanical origin. (2) Methods: Within the PRIMA project “PLANT-B”, a metabolomics workflow was established to unveil potential chemical markers of orange blossom honey produced in case study areas of Egypt, Italy, and Greece. In some of these areas, aromatic medicinal plants were cultivated to enhance biodiversity and attract pollinators. The non-targeted chemical analysis and metabolomics were conducted using ultra-high-performance liquid chromatography high-resolution mass spectrometry (UHPLC-HRMS). (3) Results: Forty compounds were disclosed as potential chemical markers, enabling the differentiation of the three orange blossom honeys according to geographical origin. Italian honey showed a preponderance of flavonoids, while in Greek honey, terpenoids and iridoids were more abundant than flavonoids, except for hesperidin. In Egyptian honey, suberic acid and a fatty acid ester derivative emerged as chemical markers. New, for honey, furan derivatives were identified using GC-MS in Greek samples. (4) Conclusions: The application of UHPLC-HRMS metabolomics combined with an elaborate melissopalynological analysis managed to unveil several potential markers of Mediterranean citrus honey potentially associated with citrus crop varieties and the local indigenous flora.

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“…La synthèse en a été réalisée par différents auteurs (BARBIER, iIUG E L, 1961 -BRO WN , F ELAU E R , S MITH , 1962-E ITER , 1962. On l'a signalé dans les extraits de têtes de reines, mais en plus petites quantités que l'acide céto-9 décène-2 oïque (C ALLOW , C HAPMAN , PATON, 1964).…”

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Mise en Évidence d'UN Cycle Saisonnier De La Teneur en Acides Céto-9 Et Hydroxy-9 Décène-2 Oïque Des Têtes De Reines Vierges d'ABEILLE

Pain¹,

Röger²,

Theurkauff³

1974

Apidologie

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(Apis mellifera ligustica S.) During a period extending from March 1971 to March 1972, a queenrearing was achieved each month by means of a simple grafting or larvae. All the young larvae were issued from the same colony of Italian bees (A. m. tigustica S.). The rearing took place in two to four rearing colonies used in sucession. Two days before the queen eclosion, the queen cells were taken out and placed into an incubator, together with some forty bees nearly born, and about ten hive-bees which were fed with candy and pollen, the latter being stored before use at a temperature of -25 °C.On the 23 rd day of their cage-life, the virgin queens vers killed and weighed, the head being weighed separately. Then, the amount of 9-oxodec-2-enoic acid on the one hand and of 9-hydroxydec-2-enoic acid on the other hand was determined through gas chromatography. During the experiment, which covered 13 rearing series, 199 virgin queens were tested. The results were submitted to a statistical analysis.The quantitative analysis revealed the existence of an annual cycle in the two investigated acids and a cycle in the weight of queens. The cycle of the 9-oxodec-2-enoic acid is the clearer and the more stable of the two. It is not dependent on the rearing colony. A first maximum in the production appears in June and a second, of lesser importance, in December. The lowest quantities are obtained in August and September, as well as in March. The cycle of the 9-hydroxydec-2-enoic acid is partially similar to that of the 9-oxodec-2-enoic acid but is delayed as compared to it. Concerning the weight of queens, a maximum was observed in May, one month before that of the 9-oxodec-2-enoic acid. The weights decrease regularly until November and there is no increase before spring.A parallelism was etablished between the annual cycle of the 9-oxodec-2-enoic acid and that of the 10-hydroxydec-2-enoic acid produced by the worker bees which was detected previously (PAIN and ROGER, 1970).The relations between the secretion cycles of the pheromonal substances and different environmental factors (photoperiod, temperature, food resources) are discussed. The part played by the worker bees under this respect is also discussed, the worker bees being studied under variable physiological conditions according to which moment of the year they were selected to act as companions for the queens. Descripteurs : Saison écologique, acide céto-9 décène-2 oïque, acide hydroxy-9 décène-2 oïque, acide hydroxy-10 décène-2 oïque, phéromone de déclenchement, phéromone d'amorçage, Apis m. ligustica, reine insecte, poids. RÉSUMÉ

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Biosynthesis of Royal Jelly Acid from Sucrose

Cited by 4 publications

References 1 publication

Effects of Sucrose Feeding on the Quality of Royal Jelly Produced by Honeybee Apis mellifera L.

Effects of Sucrose Feeding on the Quality of Royal Jelly Produced by Honeybee Apis mellifera L.

Fingerprinting Chemical Markers in the Mediterranean Orange Blossom Honey: UHPLC-HRMS Metabolomics Study Integrating Melissopalynological Analysis, GC-MS and HPLC-PDA-ESI/MS

Mise en Évidence d'UN Cycle Saisonnier De La Teneur en Acides Céto-9 Et Hydroxy-9 Décène-2 Oïque Des Têtes De Reines Vierges d'ABEILLE

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