Effect of harvesting time and the number of queen cell cups on royal jelly composition

Koç, Aytül Uçak; Karacaoğlu, Mete; Uygun, Murat; Bakir, Zehra Burcu; Keser, Burcu

doi:10.1080/00218839.2021.1930956

Cited by 3 publications

(1 citation statement)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Also, this natural product has many vital biological properties that are beneficial such as antibacterial, anticancer, antitumor, and anti‐oxidant. In addition, it strengthens the immune system [14–18] . The physicochemical structure of RJ, major royal jelly proteins (MRJPs), 10‐hydroxy‐2‐decenoic acid (10‐HDA), and hormones play a role in the emergence of the beneficial properties of RJ solitary or with synergistic effects [19] …”

Section: Introductionmentioning

confidence: 99%

Comprehensive Study of the Physicochemical Properties of Royal Jelly from Various Regions of Türkiye**

Beykaya,

Inkaya,

Yorulmaz Onder

et al. 2023

Chemistry & Biodiversity

View full text Add to dashboard Cite

This study analysed some physicochemical and quality parameters of 176 royal jelly (RJ) samples from different regions of Türkiye, collected over different years and seasons. According to the obtained results, the moisture percentage varied between 47.36% and 69.58%, with no statistically significant differences seen across various seasons and areas (p>0.05). The average value of 10‐hydroxy‐2‐decenoic acid (10‐HDA), which varies according to factors such as season, region, and year, was determined to be 2.32%. It was also seen that this value was close to the international standard. The values of total acidity ranged from 28–58 mL 1N NaOH/100 g. Furthermore, statistical significance (p<0.001) was observed for the year‐region interaction in relation to 10‐HDA and total acidity. The pH measurement results for all samples confirmed the acidic nature of the samples and resulted in a range between 3.45 and 3.80. And the pH variability was also found to be statistically significant for years (p=0.002) and regions (p=0.011). Finally, the correlation analysis between moisture (%), 10‐HDA (%), total acidity, and pH revealed no statistically significant or strong differences. This comprehensive study, supported by statistical analyses, is thought to be a useful reference for future research on RJ.

show abstract

Section: Introductionmentioning

confidence: 99%

Comprehensive Study of the Physicochemical Properties of Royal Jelly from Various Regions of Türkiye**

Beykaya,

Inkaya,

Yorulmaz Onder

et al. 2023

Chemistry & Biodiversity

View full text Add to dashboard Cite

show abstract

The role of microencapsulation in maintaining biological activity of royal jelly: comparison with biological activity and bioaccessibility of microencapsulated, fresh and lyophilized forms during storage

et al. 2022

View full text Add to dashboard Cite

BACKGROUND Royal jelly (RJ) is a unique beehive product and has been recommended for human health since ancient times because of its antioxidant, antimicrobial, antiproliferative, neuroprotective, anti‐lipidemic and anti‐aging features. However, the biggest obstacle in the use of RJ is the need for cold storage and the instability of bioactive components over time. In the present study, 10‐hydroxy‐2‐decenoic acid (10‐HDA) content, as well as antioxidant [using 1,1‐diphenyl‐2‐picrylhydrazy and 2,2′‐azino‐bis(3‐ethylbenzthiazoline‐6‐sulfonic acid) methods] and antimicrobial activity (five Gram‐positive, five Gram‐negative and three yeasts), were comparatively evaluated for three RJ forms, two of which can be stored at 24 ± 1 °C during storage. RESULTS Microencapsulated royal jelly (MRJ) stored at room temperature succeeded in preserving its 10‐HDA content, a major bioactive compound, during the 6 months, with respect to lyophilized royal jelly (LRJ) and fresh RJ stored at 4 °C. The initial 10‐HDA contents of RJ, LRJ and MRJ were determined as 1.90%, 5.26% and 2.75%, respectively. Moreover, the total phenolic content, antioxidant capacity and antimicrobial activity mostly remained constant throughout the storage period (P ≥ 0.05). Gram‐positive strains were generally more sensitive than Gram‐negative strains. In the present study, the in vitro simulated digestion analysis showed that MRJ can tolerate the digestion process. CONCLUSION Overall, the encapsulation process was considered as one preservative technique for RJ. The microencapsulation of RJ as shown in the results of the present study are encouraging in terms of enabling the local beekeeping sector to achieve ease of production and increased product diversity. MRJ shows promise as a commercial product with a high export value for producers. © 2022 Society of Chemical Industry.

show abstract

Determination of total protein, trans- 10-Hydroxy-2-Decenoic Acid (10-HDA) and major royal jelly proteins in royal jelly produced at different harvest times in queenless and queenright colonies

KOÇ

KARACAOĞLU

BAKIR

et al. 2022

Harran Tarım Ve Gıda Bilimleri Dergisi

View full text Add to dashboard Cite

show abstract

Effect of harvesting time and the number of queen cell cups on royal jelly composition

Cited by 3 publications

References 31 publications

Comprehensive Study of the Physicochemical Properties of Royal Jelly from Various Regions of Türkiye**

Comprehensive Study of the Physicochemical Properties of Royal Jelly from Various Regions of Türkiye**

The role of microencapsulation in maintaining biological activity of royal jelly: comparison with biological activity and bioaccessibility of microencapsulated, fresh and lyophilized forms during storage

Determination of total protein, trans- 10-Hydroxy-2-Decenoic Acid (10-HDA) and major royal jelly proteins in royal jelly produced at different harvest times in queenless and queenright colonies

Contact Info

Product

Resources

About