| [a study on identification of edible bird's nests by dna barcodes]. | to provide theoretical basis for the traceability and quality evaluation of edible bird's nests (ebns), the cytb sequence was applied to identify the origin of ebns. a total of 39 experiment samples were collected from malaysia, indonesia, vietnam and thailand. genomic dna was extracted for the pcr reaction. the amplified products were sequenced. 36 sequences were downloaded from gen bank including edible nest swiftlet, black nest swiftlet, mascarene swiftlet, pacific swiftlet and germain's swif ... | 2017 | 29376257 |
| molecular sex identification of malaysian white-nest swiftlet (aerodramus fuciphagus thunberg, 1812). | the difficulty in differentiating the sex of monomorphic bird species has made molecular sexing an important tool in addressing this problem. this method uses noninvasively collected materials such as feathers and may be advantageous for sexing endangered as well as commercialized bird species. in this study, seven primer sets for sexing birds were screened in aerodramus fuciphagus using a total of 13 feather samples that were randomly selected from the state of perak, malaysia. from the screeni ... | 2020 | 33072271 |
| nitration of tyrosine in the mucin glycoprotein of edible bird's nest changes its color from white to red. | the edible bird's nest (ebn) of the swiftlet aerodramus fuciphagus, a mucin glycoprotein, is usually white in color, but there also exist the more desirable red or "blood" ebn. the basis of the red color has been a puzzle for a long time. here, we show that the nitration of the tyrosyl residue to the 3-nitrotyrosyl (3-ntyr) residue in the glycoprotein is the cause of the red color. evidence for the 3-ntyr residue comes from (a) the quantitative analysis of 3-ntyr in ebn by enzyme-linked immunoso ... | 2018 | 29783841 |
| the rapid and sensitive detection of edible bird's nest (aerodramus fuciphagus) in processed food by a loop-mediated isothermal amplification (lamp) assay. | edible bird's nest (ebn) is a well-known and precious traditional chinese herbal material (chm). because of this, preventing the adulteration of ebn efficiently and precisely is crucial to protect consumers' interests and health. in this study, a loop-mediated isothermal amplification (lamp) assay was developed for the detection of ebn using specifically designed lamp primers. the results demonstrated that the identification of ebn by lamp assay was specific and rapid (within 1 h). it had no cro ... | 2019 | 30648568 |
| the diet for edible-nest swiftlets: nutritional composition and cost of life stages of megaselia scalaris loew (diptera: phoridae) bred on 3 commercial breeding materials. | megaselia scalaris (loew) is one of the best-known diets for the swiftlet. previous studies have addressed the problem of some mass rearing conditions for this insect; unfortunately, the details of the nutritional composition of the life stages and cost of the breeding materials were insufficiently reported, even though this information is crucial for farming the edible-nest swiftlet. we aimed to investigate the nutritional composition of the life stages of m scalaris on a cost basis using 3 com ... | 2019 | 30675104 |
| occurrence of a nonsulfated chondroitin proteoglycan in the dried saliva of collocalia swiftlets (edible bird's-nest). | despite their wide occurrence, proteoglycans (pgs) have never been isolated from the saliva of higher animals. we found that the collocalia glycoproteins isolated from edible birds'-nests (the dried forms of regurgitated saliva of male collocalia swiftlets) were rich in a pg containing nonsulfated chondroitin glycosaminoglycans (gags). we have devised a method to isolate a pg from the water extract of the white nest built by aerodramus fuciphagus (white nest swiftlets) with a yield of 2-mg pg pe ... | 2007 | 17035304 |
| phlebotomine sand flies of edible-nest swiftlet cave of lang ga jiew island, chumphon province, thailand. | the present study reported for the first time phlebotomine sandfly species inhabiting edible-nest swiftlet cave of the isolated island, based on field collections made during june 2010-may 2011. the insect diversity was relatively lower to that of mainland caves. all species, phlebotomus stantoni, sergentomyia anodontis, sergentomyia bailyi, sergentomyia gemmea, sergentomyia hodgsoni and sergentomyia punjabensis were either endemic island species or native elsewhere in thailand. sergentomyia hod ... | 2015 | 26695199 |
| thermal analysis methods for the rapid identification and authentication of swiftlet (aerodramus fuciphagus) edible bird's nest - a mucin glycoprotein. | edible bird's nest of the swiftlet aerodramus fuciphagus, is an unusual dried mucin glycoprotein, which has been used, particularly by asians, as a premium food and wide spectrum health supplement for centuries. for the first time, thermogravimetry, differential thermogravimetry, and differential scanning calorimetry methods are used for the rapid identification and authentication of edible bird's nest. it is shown that edible bird's nest has a total moisture content of 12.6% which is removed be ... | 2017 | 28395829 |
| genetic homogeneity among colonies of the white-nest swiftlet (aerodramus fuciphagus) in thailand. | the white-nest swiftlet, aerodramus fuciphagus, originally lived in large colonies in natural caves, but now it also occurs in man-made buildings. we investigated the patterns of genetic differentiation in two mitochondrial dna genes (cyt-b and nd2) and eight microsatellite loci among and within colonies of a. fuciphagus from across recently established man-made colonies in thailand. ten white-nest swiftlet colonies were sampled along the coast of the gulf of thailand and the andaman sea in thai ... | 2008 | 18459819 |
| design principles of biologically fabricated avian nests. | materials and construction methods of nests vary between bird species and at present, very little is known about the relationships between architecture and function in these structures. this study combines computational and experimental techniques to study the structural biology of nests fabricated by the edible nest swiftlet aerodramus fuciphagus on vertical rock walls using threaded saliva. utilizing its own saliva as a construction material allows the swiftlets full control over the structura ... | 2019 | 30886230 |
| molecular analysis of edible bird's nest and rapid authentication of aerodramus fuciphagus from its subspecies by pcr-rflp based on the cytb gene. | edible bird's nest (ebn), for its great nutritional value, is widely used around the world, especially in china and singapore. ebns of different origins and types may vary in price and quality. nowadays, birds' nests are difficult to identify morphologically, except for some whole bird's nests of which origins can be roughly identified. in this study, forty-two samples were collected from different regions for sequencing analysis and phylogenetic classification to initially determine their origi ... | 2020 | 32930302 |
| identification of two novel antioxidant peptides from edible bird's nest (aerodramus fuciphagus) protein hydrolysates. | edible bird's nest (ebn) is widely consumed as a delicacy and traditional medicine amongst the chinese. in the present study, for the first time, the antioxidant properties of an ebn pepsin-trypsin hydrolysate of the swiftlet species aerodramus fuciphagus and its ultrafiltration fractions were investigated. thirteen peptides with molecular weights between 514.29 and 954.52 da were identified in the ebn fraction with the use of mass spectrometry. two novel pentapeptides pro-phe-his-pro-tyr and le ... | 2017 | 28497137 |
| de novo transcriptome analysis shows differential expression of genes in salivary glands of edible bird's nest producing swiftlets. | edible bird's nest (ebn), produced from solidified saliva secretions of specific swiftlet species during the breeding season, is one of the most valuable animal by-products in the world. the composition and medicinal benefits of ebn have been extensively studied, however, genomic and transcriptomic studies of the salivary glands of these birds have not been conducted. | 2017 | 28673247 |