Thermal analysis methods for the rapid identification and authentication of swiftlet ( Aerodramus fuciphagus ) edible bird's nest – A mucin glycoprotein

Shim, Eric Kian‐Shiun; Chandra, Gleen F.; Lee, Soo‐Y.

doi:10.1016/j.foodres.2017.02.018

Cited by 27 publications

(16 citation statements)

References 34 publications

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“…Some of the H 2 O 2 may be tightly hydrogen-bond in coils of the glycoprotein chains, just like the tightly bound water, and may remain trapped in the EBN on drying typically below 60°C, and this could present as a food hazard. It may be necessary to heat dry the cleaned EBN at above 100°C to dislodge and decompose H 2 O 2 , or to reduce it in the moist EBN with permitted reducing agents like ascorbic acid, or by enzymatic decomposition with catalase, before drying (Shim et al, 2017). This study further supports the importance of heat treatment for EBN.…”

Section: Industrial Edible Bird's Nest Processing Optimised With Laboratory Findingssupporting

confidence: 70%

“…Hence, adulterated EBN (e.g. glucose, sucrose, hydrolysed marine collagen, and monosodium glutamate) has distinctive TG and DTG curves which could be identified when compared to TG and DTG curves of pure EBN (Shim et al, 2017). Shi et al (2017) designed a rapid and non-destructive method to characterise the distribution map of carbohydrates, proteins, and sialic acid in EBN using hyper-spectral imaging.…”

Section: Authentication Of Edible Bird's Nestmentioning

confidence: 99%

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Edible Bird’s Nest: Recent Updates and Industry Insights Based On Laboratory Findings

Chok

et al. 2021

Front. Pharmacol.

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Edible bird’s nest (EBN) is a traditional Chinese delicacy made of the saliva of swiftlets found in Southeast Asia. With increasing demands for EBN, quality control of EBN products is important for safe consumption. The processing steps are particularly important for efficient extraction of bioactive compounds. Geographical location, collection place, and harvesting season contribute to differences in nutritional contents in EBN. Concerns regarding presence of adulterant, chemical, and microbial contaminants in EBN as well as authentication and chemical composition measuring methods are discussed in this review. Recent discoveries of beneficial health functions of EBN in antimicrobial and antiviral actions, immunomodulation, cancer prevention and treatment, tissue regeneration, cardiometabolic maintenance, antioxidant action and neuroprotection are also reviewed. Our review provides an update on the recent research on EBN.

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Section: Industrial Edible Bird's Nest Processing Optimised With Laboratory Findingssupporting

confidence: 70%

Section: Authentication Of Edible Bird's Nestmentioning

confidence: 99%

Edible Bird’s Nest: Recent Updates and Industry Insights Based On Laboratory Findings

Chok

et al. 2021

Front. Pharmacol.

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“…An empty aluminium pan was used as the reference. The normalised heat flows as a function of temperature were recorded as described by Shim et al (2017). The maximum transition temperature was estimated from the endothermic peak of the DSC thermogram and transition enthalpy was determined from the area under the endothermic peak.…”

Section: Differential Scanning Calorimetry (Dsc)mentioning

confidence: 99%

House and cave edible bird’s nest: Characteristics and quality of sterilised beverages containing the selected bird’s nest

Chantakun

Nilsuwan

Sripradit

et al. 2022

Int J of Food Sci Tech

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Edible bird's nests (B nest ) collected from house and cave of eight provinces in the southern part of Thailand were characterised. B nest from different locations had differences in Fourier transform infrared (FTIR) spectra and energy-dispersive X-ray (EDX) spectroscopy patterns but there was no distinctive difference in protein patterns. Crystallinity values of cave-B nest from Phatthalung province (PL-C) and house-B nest from Songkhla province (SK-H) (38.79% and 35.52%, respectively) were higher than those of other samples. PL-C and SK-H samples had different thermal behaviours, as determined by the thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Both samples were used for the production of B nest beverage using the retort process (121 °C for 11 min). Colour, soluble solid content, drained weight, and sterility were determined in both beverages. Average L*-value and soluble solid content of SK-H were higher than those of PL-C (P < 0.05). Higher a* and b*-values and drained weight were found in the latter. However, aerobic/anaerobic mesophiles and thermophiles were not detected in both samples. The beverage containing PL-C generally showed higher acceptability for all attributes, especially appearance, texture, and overall likeness (P < 0.05), than that with SK-H. Therefore, the habitat, where bird's nest was collected, had a marked influence on the characteristics of both dried nest and resulting sterilised bird's nest beverages.

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“…With the increasing occurrence of adulteration, there has been widespread interest in developing simple, sensitive and accurate techniques to check for the quality and authenticity of EBN, including physical and chemical techniques. For example, thermal analysis methods, gel electrophoresis technology, Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy and the analysis of EBN fiber microstructure using arrays are applicable with the goal of the rapid authentication of EBN (Yang et al, 2014;Shim et al, 2017;Guo et al, 2018;Dai et al, 2020). Separation techniques have also been widely used, such as gas chromatography and liquid chromatography, which can analyze the composition of amino acids, saccharides, peptides, the polyunsaturated fatty acids, saturated fatty acids and mono-unsaturated fatty acids (Chua et al, 2015;Wong et al, 2018;Lee et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Genetic Identification of Edible Bird’s Nest in Thailand Based on ARMS-PCR

Fan

Zhong

et al. 2021

Front. Genet.

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Edible bird’s nest (EBN) is a popular delicacy in the Asian Pacific region originating from Indonesia, Malaysia, Thailand and Vietnam, which consist of various potential medicine value in Traditional Chinese Medicine (TCM). Thailand is one of the main exporters of EBN. However, the genetic information of EBN, a key part of molecular biology, has yet to be reported in Thailand. It is necessary to explore the genetic information of EBN in Thailand based on a quick and simple method to help protect the rights and interests of consumers. This research aimed to systematically evaluate different methods of extracting EBN DNA to improve the efficiency of the analysis of cytochrome b (Cytb) and NADH dehydrogenase subunit 2 (ND2) gene sequences, the establishment of phylogenetic trees, and the genetic information of EBN in Thailand. Additionally, we aimed to develop a quick and simple method for identifying EBN from different species based on the genetic information and amplification-refractory mutation system PCR (ARMS-PCR). By comparing the four methods [cetyltrimethylammonium bromide (CTAB), sodium dodecyl sulfate (SDS), kit and guanidinium isothiocyanate methods] for EBN extraction, we found that the guanidinium isothiocyanate method was the optimal extraction method. Phylogenetic trees generated on the basis of Cytb and ND2 gene analyses showed that 26 samples of house EBN and 4 samples of cave EBN came from Aerodramus fuciphagus and Aerodramus maximus, respectively. In addition, to distinguish different samples from different species of Apodiformes, we designed 4 polymerase chain reaction (PCR) amplification primers based on the ND2 gene sequences of A. fuciphagus and A. maximus. The ARMS-PCR results showed band lengths for A. fuciphagus EBN of 533, 402, and 201 bp, while those for A. maximus EBN were 463, 317, and 201 bp. Collectively, the results showed that ARMS-PCR is a fast and simple method for the genetic identification of EBN based on designing specific original identification primers.

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Thermal analysis methods for the rapid identification and authentication of swiftlet ( Aerodramus fuciphagus ) edible bird's nest – A mucin glycoprotein

Cited by 27 publications

References 34 publications

Edible Bird’s Nest: Recent Updates and Industry Insights Based On Laboratory Findings

Edible Bird’s Nest: Recent Updates and Industry Insights Based On Laboratory Findings

House and cave edible bird’s nest: Characteristics and quality of sterilised beverages containing the selected bird’s nest

Genetic Identification of Edible Bird’s Nest in Thailand Based on ARMS-PCR

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