ULASAN SARANG BURUNG WALET SEBAGAI PANGAN FUNGSIONAL

Sarang burung walet (SBW) merupakan sarang yang berasal dari saliva beberapa spesies burung walet keluarga Apodidae, terutama spesies Aerodramus fuciphagus dan A. maximus. Indonesia merupakan negara penghasil SBW terbesar dengan menyumbang 85% dari pasar dunia. Sarang burung walet sejak lama telah digunakan dalam pengobatan tradisional Tiongkok. Komponen utama dari SBW adalah glikoprotein, yang diyakini terlibat dalam jalur biologis yang beragam untuk meningkatkan kesehatan. Berbagai metode penelitian telah dilakukan untuk mengkarakterisasi peptida dan glikoprotein SBW sebagai bahan bioaktif makanan fungsional. Ulasan ini bertujuan untuk memberikan informasi mengenai potensi SBW sebagai produk makanan fungsional berdasarkan kandungan bahan bioaktif dan sifat fisikokimia yang dimilikinya. Sarang burung walet digunakan sebagai bahan makanan, baik dengan menyajikan dalam bentuk utama atau menggabungkan dengan bahan lain yang meningkatkan nilai tambah produk pangan seperti minuman siap saji, yoghurt, roti daging, es krim, mie dan cokelat. Potensi komponen bioaktif SBW sebagai pangan fungsional meliputi klaim penurunan risiko penyakit dan klaim fungsi lain. Klaim penurunan risiko penyakit antara lain anti inflamasi, aktifitas antivirus, meningkatkan kesehatan jantung dan pembuluh darah, meningkatkan imunitas, efek neuroprotektif, dan mencegah penyakit diabetes. Klaim fungsi lain meliputi ploriferasi sel, aktifitas epidermal growth factor (EGF) dan anti penuaan, memperbaiki fungsi saluran pencernaan, peningkatan kekuatan tulang, meningkatkan fungsi saluran reproduksi, dan antioksidan.

Seascape shadows: Life in the ruins of the edible bird's nest harvest in northern Palawan, the Philippines

The intensifying extraction, privatization, and conservation of maritime spaces are transforming seascapes globally. Amidst rapid coastal change and the ambiguous reconfiguration of oceans as frontiers are coastal dwellers who occupy the shadows of these seascapes. In contrast to the capture of high-profile marine species, the harvest of the edible nests of balinsasayaw (swiftlet, Aerodramus fuciphagus) remains largely concealed at the interstitial spaces between land, coast, and sea. In the Philippines, harvesters known as busyador negotiate social relations, political networks, and karst systems to extract these lucrative nests. Despite the nest industry growing in value in Southeast Asia, we show how the busyador struggle in precarious social relations and spaces peripheral to coastal governance in northern Palawan Island. Building on the concept of ‘seascape assemblages’, we emphasize the importance of the less visible human-nonhuman relations that shape the nest harvest and trade. We trace the marginal social histories of the balinsasayaw by highlighting the precarious nature of the harvest, revealing how the busyador are subject to unfair working conditions, dispossession, and violence. We argue that as state actors and local elites reconfigure oceans as frontiers for development and conservation, struggles over labour and tenure rights, livelihood opportunities, and justice at sea are disregarded.

The Authentication and Grading of Edible Bird’s Nest by Metabolite, Nutritional, and Mineral Profiling

Edible bird’s nest (EBN) produced by Aerodramus fuciphagus has a high demand for nutritional and medicinal application throughout the world. The present study was to evaluate the authentication of a man-made house EBN, which are half cup and stripe-shaped by FTIR. Next, both samples were compared according to their metabolite, nutritional, and mineral composition. The results indicated that the FTIR spectra of both EBN samples were identical and similar to the reference, suggesting the authenticity of the EBN used. The metabolites that contribute to the possible medicinal properties of EBN were found by using GC-MS. The results of the proximate analysis, followed by the standard AOAC method, inferred that both EBN shapes to be rich in crude protein and carbohydrate contents. However, the proximate composition between the half cup and stripe-shaped EBN showed significant differences. Major mineral elements detected were calcium and sodium, and magnesium contents were significantly different between both EBN. Additionally, the half cup and stripe-shaped EBN had a low level of heavy metal content than the maximum regulatory limit as set by the Malaysian Food Act 1983. This study concludes that the nutritional composition varied between the samples and thus suggests that nutrient content should be considered as criteria for the grading requirement of commercialized EBN.

The dietary, productivity, and economic value of swiftlet (Aerodramus fuciphagus) farming in East Kalimantan, Indonesia

Mursidah, Lahjie AM, Masjaya, Rayadin Y, Ruslim Y, Judinnur MB, Andy. 2021. The dietary, productivity, and economic value of swiftlet (Aerodramus fuciphagus) farming in East Kalimantan, Indonesia. Biodiversitas 22: 2528-2537. Edible-nest swiftlets have many health benefits. The availability of edible-nest swiftlets from caves is decreasing, while the demand for edible-nest swiftlets is getting higher. Swiftlet farming is carried out to meet this demand. The location of swiftlet farming should be close to the feeding sources. Swiftlet is flying insectivorous animals. A financial feasibility assessment is carried out to determine the feasibility of the business. This study aims to determine the composition of land cover, determine the insect order of feed sources, and analyze the production and financial feasibility of swiftlet farming. The study was carried out from June to December 2019. The composition of land cover was determined using the supervised classification method, the order of insects was known using the insect determination key, while production and financial feasibility were analyzed using the Net B/C, NPV, IRR, and PP methods. The observed location and swiftlet farming were determined purposefully. The results of this study show that the land cover was dominated by shrubs (56.58%) and secondary forest (27.3%); both types of land cover are suitable for swiftlet farming locations. The dominant insects found in shrubs and wetland shrubs are Diptera (78.25%), in rice fields are Diptera (86.7%) and in oil palm plantations are Diptera (29.4%) and Hymenoptera (27.78%). Edible-nest swiftlets harvest begins in the third year, with a production period of between 17-34 years. From the financial feasibility, it can be concluded that swiftlet farming is feasible.

In Vitro Determination of Sun Protection Factor of Water Extract of Aerodramus fuciphagus from Central Kalimantan

Sunscreen is a cosmetic substance that has the ability to reflect or absorb sunlight actively. It can prevent skin irritation due to UV rays. One of the natural ingredients with a sunscreen effect is the Edible-nest swiftlet's (Aerodramus fuciphagus) nest (ESN). This study aimed to determine the value of the sun protective factor (SPF) of the ESN water extract. The ESN water extract solution with variation concentration, this is 2000, 2500, 5000, 6000, and 7000 ppm, were measured by spectrophotometric UV-Vis at wavelength 290-375 nm with 5 nm intervals to determine the value of SPF, percentage of erythema transmission (%Te), and percentage of pigmentation transmission (%Tp) of ESN water extract. The result showed that the ESN water extract's SPF values at the concentration 2000, 2500, 5000, 6000, and 7000 ppm were 7.80; 9.68; 18.75; 20.58; and 22.24. The value of %Te of each concentration were 15.60±0.19; 10.03±0.42; 1.24±0.04; 0.81±0.01 and 0.56±0.01. While the value of %Tp of each concentration was showed the sunblock category. In conclusion, the ESN water extract from Central Kalimantan at the concentration of 6000 ppm has potential in ultraviolet protection against the skin in the ultra category with sunblock category mechanism. Further, it can be developed into sunscreen cosmetics from natural ingredients.