PENGARUH MINYAK ATSIRI JAHE MERAH DAN LENGKUAS MERAH PADA EDIBLE COATING TERHADAP KUALITAS FILLET IKAN PATIN

The effects of edible coating enriched with red ginger and red galangal essential oil on quality of patin fillets during refrigerated storage of 8 days were examined. Fish quality determined base on microbiological (Total Plate Count /TPC) and physicochemical (Total Volatile Bases/TVB, Thiobarbituricacid/TBA, pH, and color) quality. Treatment variation of patin fillets were essential oil concentration enriched in edible coating (0 %, 0.1%, 1%). The results indicated that both red ginger and red galangal essential oil could affect patin fish fillets quality. Essential oil enrichment on edible coating will retain the patin fillets quality. In terms of microbial quality and TVB value, 1% essential oil of red ginger and red galangal enrichment on edible coating could extend patin fillets shelf life for 2-4 days. Keyword: edible coating, essential oil, patin, red ginger, red galanga

A starch edible surface coating delays banana fruit ripening

A rice starch edible coating blended with sucrose esters was developed for controlling the postharvest physiological activity of Cavendish banana to extend postharvest quality during ripening at 20 ± 2 °C. Coating effectiveness was assessed against changes in fruit physiochemical parameters such as weight loss, titratable acidity, total soluble solids, flesh fruit firmness, ion leakage, colour change, respiration, ethylene production, chlorophyll degradation and starch conversion were determined. The topography of coating material on the fruit surface was evaluated by scanning electron microscope (SEM). Surface morphology studies highlighted the binding compatibility of the coating matrix with the fruit peel character and formed a continuous uniform layer over the fruit surface. The results showed that the coating was effective in delaying ethylene biosynthesis and reducing respiration rate. Other factors impacting included delayed chlorophyll degradation, reduced weight loss and retention of fruit firmness for the first six days, all of which improved the commercial value of the fruit. The shelf life of coated fruit was prolonged for 12 days in comparison with the untreated control which ripened within seven days and lost marketability after Day 6. The pilot study demonstrates the effectiveness of a starch-based edible coating formulation for improving the ambient storage capacity of banana fruit

Aplikasi Edible Coating Natrium Alginat Dalam Menghambat Kemunduran Mutu Dodol Rumput Laut

Dodol merupakan makanan tradisional Indonesia yang bersifat semi basah dengan masa simpan yang relatif singkat. Kemunduran mutu yang sering terjadi pada dodol rumput laut adalah pertumbuhan kapang akibat dari penanganan dan pengemasan yang kurang tepat. Tujuan penelitian ini adalah untuk mengetahui pengaruh penggunaan dan perbedaan konsentrasi edible coating natrium alginat dalam mempertahankan mutu dodol rumput laut. Materi yang digunakan dalam penelitian ini adalah natrium alginat, gliserol, CaCl2, dan dodol rumput laut. Metode penelitian yang digunakan adalah experimental laboratories dengan menggunakan Rancangan Acak Lengkap (RAL) pola terbagi oleh waktu “split plot in time”. Faktor konsentrasi edible coating natrium alginat (0%; 1,5%; 2% dan 2,5%) sebagai sub plot dan lama penyimpanan (hari ke-0, 2, 4, 6, dan 8) sebagai main plot. Data nilai uji organoleptik dianalisis dengan uji Kruskal Wallis, sedangkan uji total plate count (TPC), kadar air, Awdan pH dianalisis menggunakan uji ANOVA. Hasil penelitian menunjukkan bahwa adanya interaksi antara konsentrasi edible coating natrium alginat dan lama penyimpanan yang berpengaruh nyata (P<0,05) terhadap nilai TPC dan kadar air. Konsentrasi edible coating natrium alginat dan lama penyimpanan masing-masing faktor memberikan pengaruh yang nyata terhadap nilai Aw. Konsentrasi edible coating natrium alginat memberikan pengaruh yang nyata terhadap nilai pH. Berdasarkan hasil penelitian didapatkan nilai logaritma TPC berkisar antara 3,48–4,9 cfu/g; nilai kadar air antara 23,889%-29,762%; nilai Aw antara 0,81–0,87; nilai pH antara 6,2 – 6,28; nilai organoleptik antara 3 – 7,4. Berdasarkan hasil penelitian dapat disimpulkan bahwa edible coating natrium alginat berpengaruh dalam mempertahankan mutu dodol rumput laut. Edible coating natrium alginat 2,5% merupakan konsentrasi terbaik, mampu mempertahankan mutu dodol rumput laut hingga hari ke 8. Materials that was environmentally friendly and can be consumed. Seaweed lunkhead is an Indonesian traditional food and as categiriced as intermediate moisture food did has relatively short shelf life. The quality deterioration that often occur on seaweed lunkhead is mold, may occur due to handling and packaging. The purpose of this research is to know the influence of using differences concentration edible coating of sodium alginate in maintaining the quality of Seaweed lunkhead. The material used in this study are sodium alginate, glycerol, CaCl2, and seaweed lunkhead. Research methods used are experimental laboratories by using a Complete Randomized Design (CRD) divided by the time pattern "split plot in time". Concentration factors edible coating of sodium alginat (0%; 1.5%; 2% and 2.5%) as sub plots and storage time (0, 2, 4, 6, and 8 days) as main plot. The data of sensory test was analyzed by Kruskal Wallis test, while the total plate count (TPC), moisture content, pH and Aw were analyzed using ANOVA test. The results showed that interaction between concentration edible coating of sodium alginate and storage time are gave significant effect (P < 0.05) for TPC and moisture content. Concentration edible coating of sodium alginate and storage time gave significant effect to Aw. Concentration edible coating of sodium alginate gave significant effect to pH. Based on the results obtained logarithmic TPC ranged between 3.48 – 4.9 cfu/g; moisture content range 23.889% - 29.762%; Aw value of 0.81 – 0.87; the pH between 6.2 – 6.28; the value of sensory between 3 – 7.4. Based on the results of the study it can be concluded that a edible coating of sodium alginat do influence in maintaining the quality of seaweed lunkhead. Concentration edible coating of sodium alginate 2.5% is best able to maintain the quality of seaweed lunkhead up to day 8 days

A note on the effect of calcium alginate coating on quality of refrigerated strawberries.

peer-reviewedAn alginate-based edible coating was investigated for the preservation of the quality of strawberries during cold storage (5 °C). Strawberries were immersed, successively, in sodium alginate and calcium chloride solutions to generate a surface coating of calcium alginate. The quality of coated and non-coated strawberries was evaluated by weight loss, visible decay, titratable acidity, total soluble solids and reducing sugar concentration over a 14-day storage period. Results showed that coating with calcium alginate had no significant effects on weight loss or physicochemical parameters when compared to control fruit, but it did result in the postponement of visible decay during refrigerated storage

KOMBINASI PATI JANENG-KITOSAN DENGAN BAHAN PENGAWET ALAMI KUNYIT DAN ASAM ASKORBAT SEBAGAI EDIBLE COATING

Edible coating merupakan salah satu solusi dalam pengawetan makanan saat ini. Pada penelitian ini dibuat edible coating dari komposit edible film pati janeng-kitosan-pengawet alami (kunyit dan asam askorbat) yang diaplikasikan terhadap bakso dan keju. Komposisi terbaik dari komposit edible film dengan perbandingan pati-kitosan-kunyit (1,2% : 0,4% : 0,375%) dan pati-kitosan-asam askorbat (1,2% : 0,4% : 0,5%) yang diperoleh berdasarkan uji kuat tarik, elongasi dan warna digunakan sebagai aplikasi edible coating. Uji antimikrobial menunjukkan edible film yang dikombinasikan dengan kunyit dan asam askorbat mampu menghambat pertumbuhan bakteri E. Coli dengan diameter zona hambat yang lebih besar daripada edible film pati janeng-kitosan yaitu masing-masingnya 7 mm. Pelapisan sampel keju dengan edible coating mampu menurunkan jumlah pertumbuhan mikroba, menghambat terjadinya oksidasi lemak hingga 50% dan memperkecil kenaikan kadar air hingga 41,17% selama 3 bulan penyimpanan dibandingkan dengan keju yang tidak dilapisi edible coating, sedangkan coating pada sampel bakso mampu memperkecil kenaikan kadar air hingga 20,76%, analisis sensori terhadap sampel bakso yang dilapisi edible coating dari segi aroma, tekstur dan warna menyarankan bahwa bakso yang dilapisi lebih baik dibandingkan bakso yang tidak dilapisi setelah penyimpanan selama 3 hari. Kata kunci: Edible coating, pati janeng, kitosan, kunyit, asam askorbat, antimikrob

Review: Ekstraksi Pektin dari Limbah Kulit Kedondong (Spondias Dulcis) dan Pemanfaatannya sebagai Edible Coating pada Buah

Edible coating merupakan suatu lapisan tipis, terbuat dari bahan yang dapat dikonsumsi. Salah satu bahan baku edible coating yang alami adalah pektin. Kandungan pektin pada kulit buah kedondong cukup tinggi yaitu 9% - 30%, sehingga berpotensi untuk diolah menjadi bahan baku edible coating. Pektin merupakan senyawa polisakarida yang terdiri dari polimer galakturonan yang tersusun dari asam galakturonat. Untuk mendapatkan karakteristik edible coating yang kuat, pektin harus memiliki derajat esterifikasi metil yang tinggi. Kajian bertujuan untuk menganalisis potensi ekstrak pektin dari limbah kulit buah kedondong sebagai bahan untuk pembuatan edible coating pada buah-buahan. Ekstraksi pektin dilakukan dengan cara mengeringkan kulit buah kedondong sehingga menjadi bubuk kulit kedondong, kemudian diekstraksi menggunakan asam sitrat. Coating dari kulit buah kedondong aman digunaka

Perbandingan Pengolesan Edible Coating Terhadap Ketahanan Warna Basis Resin Akrilik Gigi Tiruan

crylic resin (Polymethyl Methacrylate) is used as the base material on the denture. Acrylic resin as a base material has the disadvantage which can absorb oral fluids that can cause discoloration. Prevention of absorption of oral fluids that can affect the durability of color in acrylic resin base can be overcame by applying edible coating. Edible coatings are food coatings that can be consumed by products overlaid. The purpose of this study was to determine colour durabilits differences in acrylic resin base which was coated by edible coating and not coated. This study was an experimental research laboratory. The study used 32 samples of heat cured acrylic resin shaped plate with a size of 20 mm x 20mm x 2mm samples were divided into two groups. The first group was coated by edible coating and the second group was not coated by edible coating. Furthermore, the two groups were immersed in the colored liquid for 18 days and measured wave numbers of two groups ware measured by FTIR spectrophotometer instrument. The result of the Independent Sample T-Test showed the value of P = 0.000 (P <0.000). So it can be concluded that there was a difference in color between acrylic resin base which was smeared by edible coating and not coate

KOMBINASI PATI JANENG-KITOSAN DENGAN BAHAN PENGAWET ALAMI KUNYIT DAN ASAM ASKORBAT SEBAGAI EDIBLE COATING

Edible coating merupakan salah satu solusi dalam pengawetan makanan saat ini. Pada penelitian ini dibuat edible coating dari komposit edible film pati janeng-kitosan-pengawet alami (kunyit dan asam askorbat) yang diaplikasikan terhadap bakso dan keju. Komposisi terbaik dari komposit edible film dengan perbandingan pati-kitosan-kunyit (1,2% : 0,4% : 0,375%) dan pati-kitosan-asam askorbat (1,2% : 0,4% : 0,5%) yang diperoleh berdasarkan uji kuat tarik, elongasi dan warna digunakan sebagai aplikasi edible coating. Uji antimikrobial menunjukkan edible film yang dikombinasikan dengan kunyit dan asam askorbat mampu menghambat pertumbuhan bakteri E. Coli dengan diameter zona hambat yang lebih besar daripada edible film pati janeng-kitosan yaitu masing-masingnya 7 mm. Pelapisan sampel keju dengan edible coating mampu menurunkan jumlah pertumbuhan mikroba, menghambat terjadinya oksidasi lemak hingga 50% dan memperkecil kenaikan kadar air hingga 41,17% selama 3 bulan penyimpanan dibandingkan dengan keju yang tidak dilapisi edible coating, sedangkan coating pada sampel bakso mampu memperkecil kenaikan kadar air hingga 20,76%, analisis sensori terhadap sampel bakso yang dilapisi edible coating dari segi aroma, tekstur dan warna menyarankan bahwa bakso yang dilapisi lebih baik dibandingkan bakso yang tidak dilapisi setelah penyimpanan selama 3 hari. Kata kunci: Edible coating, pati janeng, kitosan, kunyit, asam askorbat, antimikrobaBanda Ace

Effect of biocomposite edible coatings based on pea starch and guar gum on nutritional quality of ‘Valencia’ orange during storage

Application of environmentally friendly components is an approach for substitution of synthetic substances in commercial waxes applied to citrus. In this study, the effect of biocomposite edible coatings based on pea starch and guar gum (PSGG) on total vitamin C, phenolic, flavonoid, anthocyanins, and carotenoid content, and antioxidant capacity of ‘Valencia’ orange stored at 5 °C and 20 °C for four weeks were evaluated. The fruits were coated by a single layer PSGG coating, blended composite PSGG coating containing shellac (Sh) and oleic acid as hydrophobic compounds (PSGG-Sh), and a layer-by-layer (LBL) coating (PSGG as an internal layer and Sh as an external layer). The results showed no significant differences in changes of bioactive compounds between coating treatments after first week storage at both temperatures. The PSGG coatings incorporated with hydrophobic compounds (PSGG-Sh) better preserved the nutritional value and the antioxidant potential of oranges during storage compared with other treatments. The single layer PSGG coating was almost similar to bilayer coating in preserving nutritional value of fruit during storage and less effective than the blended composite PSGG-Sh coating

Development and application of rice starch based edible coating to improve the postharvest storage potential and quality of plum fruit (<i>Prunus salicina</i>)

The study investigated the possibility of enhancing the shelf life of plum fruit coated with rice starch-ι-carrageenan (RS-ι-car) composite coating blended with sucrose fatty acid esters (FAEs). Film solution (starch 3%, carrageenan 1.5% and FAEs 2%) was prepared by mixing the ingredients and properties of stand-alone films (physical, mechanical, barrier and surface morphology) were studied before applying the coating on fruit surface. Fruit were stored at 20 °C for 3 weeks and analyzed for weight loss, ethylene production, respiration rate, color change, firmness, and titratable acidity (TA) and soluble solid content (SSC). Surface morphology of stand-alone film and fruit surface (after applying on the plum fruit) was studied using scanning electron microscopy (SEM). Phytochemical analysis was performed during the storage period and total phenolic content (TPC), total antioxidant capacity (TAC), flavonoid content (FC) and free radical scavenging activity were determined. The rice starch composite coating was shown to be effective in reducing both weight loss (WL) and respiration rate and inhibiting the endogenous ethylene production when compared to the uncoated control fruit stored at room temperature (p &lt; 0.05). TPC, TAC, FC and free radical scavenging activity was unaffected in the coated fruit throughout the storage period (p &lt; 0.05). The findings reported in this study indicate that the RS-ι-car-FAEs coating prolongs the shelf life and maintains the overall quality of plum fruit during storage and could potentially be commercialized as a new edible coating for the plum fruit industry