scholarly journals Quality of carrageenan extracted from Eucheuma cottonii cultivated at three different locations in Lampung

2021 ◽  
Vol 919 (1) ◽  
pp. 012047
Author(s):  
Subaryono ◽  
B S B Utomo ◽  
J Basmal
Keyword(s):  
Quality Parameters ◽  
Gel Strength ◽  
Ash Content ◽  
The Other ◽  
Seaweed Cultivation ◽  
Important Quality ◽  
Eucheuma Cottonii

Abstract This study aims to compare the quality of carrageenan extracted from Eucheuma cottonii harvested from three different seaweed cultivation locations at Ketapang, South Lampung. The three locations selected were Ruguk, Legundi and Tri Dharma Yoga Villages. Some important quality parameters were observed to compare the quality of carrageenan covering yield, viscosity and gel strength, in addition, the other three supporting parameters were moisture, ash, and acid insoluble ash content. Results showed that the viscosity of carrageenan from the three locations ranged from 736.67-936.67 cP and gel strength 487.77-538.22 g/cm2, while moisture, ash and acid insoluble ash content were 12.09-13.94%, 16.28-17.13%, and 0.27-0.33%, respectively. It was concluded that the quality of carrageenan from Legundi Village was the best compared to those from the two other villages.

scholarly journals The Quality of Alkali Treated Cottonii (ATC) Made from Eucheuma cottonii Collected from Different Regions In Indonesia

2013 ◽  
Vol 8 (3) ◽  
pp. 117 ◽  
Author(s):  
Muhamad Darmawan ◽  
Bagus Sediadi Bandol Utomo ◽  
Raekal Amral Yuda Mulia
Keyword(s):  
Melting Point ◽  
Moisture Content ◽  
Raw Materials ◽  
Gel Strength ◽  
Ash Content ◽  
Raw Material ◽  
Sulphate Content ◽  
Eucheuma Cottonii

The presented study has been carried out in order to study the quality of Alkali Treated Cottonii (ATC) made from Eucheuma cottonii which being collected from different regions in Indonesia (Belitung, Nusa Tenggara Barat and Lampung). The quality variables analyzed were the characteristics of raw materials (Clean anhydrous weed and impurities) and the characteristics of ATC produced (moisture content, ash content, acid insoluble ash content, yield, gel strength, sulphate content, gelling -melting point). The analysis was done in 3 replicates and the data were statistically analyzed using SPSS 15 package software. Results indicated that the raw material from Lampung had a better quality than those from Nusa Tenggara Barat and Belitung. In addition, the characteristics of ATC produced from these three raw materials showed that seaweed from Lampung produced better quality ATC than those from Nusa Tenggara Barat and Belitung in terms of their gel strength, sulphate content and yield.

scholarly journals PEMBERIAN STIMULAN PADA BIDANG SADAP DALAM MEMPENGARUHI PRODUKSI DAN KUALITAS LATEKS TANAMAN KARET (Hevea brasiliensis (Muell. Arg.)

2019 ◽  
Vol 4 (1) ◽  
pp. 38
Author(s):  
Hayata Hayata ◽  
Yulistiati Nengsih ◽  
Rahmanto Wibowo
Keyword(s):  
Quality Control ◽  
Ash Content ◽  
The Other ◽  
Rubber Content ◽  
Randomized Design ◽  
Treatment Factor ◽  
Completely Randomized Design ◽  
Four Levels ◽  
Latex Production

Production increasing of latex on rubber plants can be increased by using a stimulants. One of it  is Vicar 10 SL. The purpose of this study was to find out the effect of Vicar 10 SL on the production and quality of latex. This research was carried out in the Kasang Parit Village, Sekernan District, Muaro Jambi Regency, and the Goods Quality Control and Certification Center on Industry and trade department   in Jambi Province. The study was conducted in July to August 2017. The design used was a completely randomized design with one treatment factor as the Vicar 10 SL application with four levels of treatment, namely; Without treatment (V0/control), 1 ml/Tree (V1), 2 ml/tree (V2), 3 ml/tree (V3). There were 4 times  repeatation on each treatment. Using  fingers, a Vicar 10 SL solution was applied to the tapping groove which was adjusted to the treatment, and allowed to keep it 24 hours. Tapping is done in the next morning, by following the grooves and be stored in a cup and left until the latex stoped dripping. Vicar was given once a week during 30 days. Tapping was done 3 times a week. The variables observed were latex production (gram/tree/day), dry rubber content (%), latex ash content (%), and latex dirt content (%). Vicar giving 10 SL in the tapping site with a dose of 2 ml / tree gave the highest yield of latex production (93.38 grams / tree / day) and dry rubber content (75.50%) and was significantly different compared to the other treatments. Vicar giving 10 SL in tapping site had no significant effect on latex dirt content and latex ash contentKeywords: Latex, stimulant, product and quality Abstrak Peningkatan produksi lateks pada tanaman karet dapat ditingkatkan dengan menggunakan stimulan. Salah satu pemakaian yang digunakan adalah Vikar 10 SL. Tujuan penelitian ini adalah untuk megetahui penggunaan stimulan pada bidang sadap dalam mempengaruhi produksi dan kualitas lateks. Penelitian ini dilakukan di Desa kasang Parit Kecamatan Sekernan Kabupaten Muaro Jambi, dan Balai Pengujian dan Sertifikasi Mutu Barang (BPSMB) Disperindag Propinsi Jambi. Penelitian dilakukan pada bulan Juli sampai dengan Agustus 2017. Rancangan yang digunakan adalah Rancangan Acak Lengkap dengan satu faktor perlakuan pemberian stimulan (Vikar 10 SL) dengan empat taraf perlakuan  yaitu; Tanpa perlakuan (V0/kontrol),  1 ml/ Pohon (V1),  2 ml/pohon (V2), 3 ml/pohon  (V3). Setiap perlakuan diulang sebanyak 4 kali. Dengan menggunakan jari dioleskan larutan Vikar 10 SL pada alur sadap  yang disesuaikan dengan perlakuan, dan didiamkan selama 24 jam. Penyadapan dilakukan pada pagi hari esoknya, dengan mengikuti alur torehan dan ditampung dalam cawan dan dibiarkan sampai lateks berhenti menetes. Pemberian Vikar dilakukan sekali 7 hari selama 30 hari. Penyadapan dilakukan  3 kali dalam seminggu. Peubah yang diamati adalah produksi lateks (gram/pohon/hari)), kadar karet kering (%), kadar abu lateks (%), kadar kotoran lateks (%). Pemberian stimulan (Vikar 10 SL) pada bidang sadap dengan dosis 2 ml/pohon memberikan hasil yang tertinggi terhadap produksi lateks 93,38 gram/pohon/hari dan kadar karet kering 75,50 % dan berbeda nyata bila dibandingkan dengan perlakuan lainnya. Pemberian stimulan (Vikar 10 SL) pada bidang sadap berpengaruh tidak nyata terhadap kotoran lateks dan kadar abu lateksKata kunci :Lateks, stimulan, produksi dan kualitas

scholarly journals Potential of Postharvest Coatings to Maintain Freshness of Red-Fleshed Pitaya (Hylocereus costaricensis)

Agriculture ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 892
Author(s):  
Nur Azlin Razali ◽  
Steven A. Sargent ◽  
Charles A. Sims ◽  
Jeffrey K. Brecht ◽  
Adrian D. Berry ◽  
...  
Keyword(s):  
Weight Loss ◽  
Tap Water ◽  
Titratable Acidity ◽  
Quality Parameters ◽  
The Other ◽  
Soluble Solids ◽  
Postharvest Quality ◽  
Quality Factors ◽  
Climacteric Fruit

Pitaya is a non-climacteric fruit that has white or red flesh with numerous small, black seeds. It has a high moisture content; however, water loss during handling and storage negatively affects the fresh weight, firmness and appearance of the fruit, decreasing market value. Application of compatible postharvest coatings has been shown to benefit postharvest quality of many crops. The objective of this study was to evaluate the effect of two commercial coatings on weight loss and quality of pitaya during storage. Pitaya fruit were commercially harvested and sorted for uniformity of size and freedom from defects. Fruit were briefly immersed in either a vegetable oil-based coating (VOC; Sta-Fresh® 2981) or a carnauba-based coating (CC; Endura-Fresh™ 6100) according to manufacturer’s recommendations. Fruit immersed in tap water served as a control. Fruit were fan-dried at room temperature for 20 min, then stored at 7 °C with 85% relative humidity (RH) and evaluated for selected physical quality parameters each 5 days during 20 days. After each evaluation, fruit were peeled and frozen for later analysis of soluble solids content (SSC), total titratable acidity (TTA); on day 15 fresh samples were evaluated by an untrained consumer sensory panel. CC prevented exocarp shriveling for 15 days of storage, compared to uncoated pitaya (16.3% area affected); shriveling in VOC was intermediate and not significantly different from the other treatments. Mesocarp firmness remained constant throughout 15 days of storage regardless of treatment. Fruit exocarp h* angle increased slightly by day 20, becoming slightly less red, and there were no negative treatment effects for the other quality factors measured: SSC (11.33%), TTA (0.25%), weight loss (5.5%) or sensory evaluations (appearance, flavor, texture, firmness, and juiciness). After 20 days storage, appearance for fruit from all treatments was rated unacceptable due to development of anthracnose lesions. It was concluded that both CC and VOC maintained quality of pitaya for 15 days at 7 °C and 85% RH by delaying exocarp shriveling.

scholarly journals Wheat and flour quality relations in a commercial mill

2013 ◽  
Vol 19 (No. 5) ◽  
pp. 189-195 ◽  
Author(s):  
M. Hrušková ◽  
K. Hanzlíková ◽  
P. Varáček
Keyword(s):  
Protein Content ◽  
Quality Parameters ◽  
Ash Content ◽  
Activity Measurement ◽  
Western Region ◽  
Falling Number ◽  
Bread Making ◽  
Gluten Index

The bread-making quality of forty commercial winter wheat samples, grown in the western region of the CzechRepublic, and their flours (white flours with ash content of about 0.5%) prepared in a commercial mill was studied. Standard analytical methods (ash and protein content, wet gluten), amylolytic activity measurement (falling number), rheological investigation (alveograph, gluten index), sedimentation test and laboratory baking test were used for characterization of wheats and flours. In addition NIR method was used to calculate ash, wet gluten, sedimentation value and protein content. Statistically significant correlations were found practically between all tested quality parameters of wheat and corresponding flour samples. However, the strongest correlation (r = 0.69–0.70) significant at 0.01 level exists between specific bread volume and protein and wet gluten content, determined both by standard or by NIR methods. 

scholarly journals SIFAT FUNGSIONAL SEMI REFINED CARRAGEENAN (SRC) DARI RUMPUT LAUT EUCHEUMA COTTONII ASAL KABUPATEN SANGIHE

2020 ◽  
Vol 6 (1) ◽  
pp. 31-36
Author(s):  
Obyn Pumpente ◽  
Jaka Frianto Putra Palawe
Keyword(s):  
Functional Properties ◽  
Potassium Hydroxide ◽  
Gel Strength ◽  
Raw Material ◽  
Added Value ◽  
Economic Potential ◽  
Sulfate Content ◽  
Eucheuma Cottonii

Rumput  laut merupakan  salah  satu  komoditas  unggulan  sektor  perikanan  karena  permintaan  yang  terus meningkat untuk kebutuhan dalam negeri maupun untuk ekspor. Untuk  meningkatkan  nilai  tambah  dan  harga  jual, maka pengolahan rumput laut menjadi  produk  karaginan  perlu  dilakukan. Tetapi meskipun rumpu laut cukup melimpah di Kabupate Sangihe, sejauh  ini  belum  ada penelitian  mengenai  kualitas  tepung  karaginan  yang diolah  dari  rumput  laut  asal  pesisir  Kabupaten Kepulauan Sangihe.  Tujuan  penelitian  ini  adalah  untuk mendapatkan  konsentrasi  KOH  yang  menghasilkan  karaginan  terbaik  dan  mengkarakterisasi  sifat  fungsional  karagi­nan  rumput laut  Eucheuma cottonii  asal  Kampung Bulo, Kecamatan Tabukan Selatan, Kabu­paten Kepulauan Sangihe sedangkan manfaat  dari  penelitian  ini dapat memberikan informasi tentang prospek pengembangan  usaha  budidaya  rumput  laut di Kabupaten Kepulauan Sangihe dan  prospek usaha  karaginan  sebagai  bahan  baku berbagai industri.  Metode Penelitian ini merupakan penelitian deskriptif, dengan mengamati sifat fungsional  dari pesisir Kabupaten Kepulauan Sangihe, prosedur penelitian dilakukan menggunakan dua tahap yaitu pada tahap pertama pengolahan SRC dengan perlakuan konsentrasi potasium hidroksida 4%, 6%, 8% dan 10%, suhu 80°C dan waktu proses 2 jam, tahap kedua yakni analisis sifat fungional dan rendemen. Penggunaan kalium hidroksida pada proses pembuatan SRC telah memenuhi standar mutu. Kisaran nilai rendemen sebesar 48.49-52.04%, nilai kekuatan gel yakni sebesar 279.59-394.22g/cm2, nilai viskositas didapatkan sebesar 22.08-35.79 cP, nilai kadar sulfat berkisar 18.13-25.43%. Nilai sifat fungsional SRC dari rumput laut  Eucheuma cottonii  asal  Kampung Bulo, Kecamatan Tabukan Selatan, Kabupaten Kepulauan Sangihe memenuhi standar yang ditetapkan oleh FAO dan BSN.   Seaweed is one of the promising fisheries commodities because of its increasing de­mand for both domestic and export needs. To increase added value and price, it is necessary to process seaweed into carrageenan products. However, despite the economic potential of carrageenan and the abundance of seaweed in Sangihe Islands, no research has addressed the quality of carrageenan from seaweed of this region. This study aimed to obtain the best KOH concentration for producing the best carrageenan from Euchema cottonii of Bulo village Nusa Tabukan district Sangihe Islands and to characterize its carrageenan functional properties. The benefit of this research included to provide information regarding the prospects of developing sea­weed cultivation in the regency and semi refined carrageenan (SRC) supply as raw material for various industries. The functional properties of semi SRC were determined by using two step analyses. First, SRC was treated with different concentration of potassium hydroxide (4%, 6%, 8% and 10%) KOH at 80°C and for 2 hours. Then, it was followed by analysis of SRC’s functional properties and yields. The results showed yield of 48.49 to 52.04%, gel strength of 279.59-394.22g /cm2, viscosity of 22.08-35.79 cP and sulfate content of 18.13-25.43%. These SRC’s functional properties of E. cottonii from Sangihe Is­lands Regency and the KOH concentration used in this study met the standards set by FAO and BSN.

scholarly journals Kualitas Sosis Daging Ayam Dengan Penambahan Tepung Tapioka

2020 ◽  
Vol 5 (2) ◽  
pp. 64
Author(s):  
Bulkaini Bulkaini ◽  
Djoko Kisworo ◽  
Sukirno Sukirno ◽  
Rani Wulandani ◽  
Maskur Maskur
Keyword(s):  
Protein Content ◽  
Nutritional Value ◽  
Ash Content ◽  
The Other ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Tapioca Flour ◽  
Addition Level ◽  
Range Test

The study was aimed to determine the effect of tapioca flour addition atvarious levels on the quality of chicken sausage. The research was design based on a Completely Randomized Design (CRD) with 4 treatments and 3 replications. The treatment of tapioca flour addition level were: 0%, 10%, 20% and 30%. Data ofsausage quality were analyzed using Analysis of Variance and continued with Duncan's Multiple Range Test. The results showed that the addition of tapioca flour in the process of chicken sausage making were significantly affect (P <0.05) moisture and protein content, while the fat and ash content were not significantly effected (P> 0.05) by the treatment. The addition of 10% tapioca flour obtained the highest nutritional value of protein (17.67 ± 0.93) % as compared to the other levels.

scholarly journals PENGARUH KOMPOSISI SEKAM PADI TERHADAP PARAMETER FISIS BRIKET TEMPURUNG KELAPA

2018 ◽  
Vol 3 (1) ◽  
pp. 37-42
Author(s):  
Maria Lurumutin Umrisu ◽  
Redi K. Pingak ◽  
Albert Zicko Johannes
Keyword(s):  
Water Content ◽  
Rice Husk ◽  
Ash Content ◽  
The Other ◽  
Coconut Shell ◽  
Thickness Variation ◽  
Physical Parameters ◽  
Better Than

ABSTRAK Briket bioarang merupakan salah satu bahan bakar yang berasal dari biomassa. Biomassa yang digunakan dalam penelitian ini adalah tempurung kelapa dan sekam padi. Penelitian ini bertujuan untuk mengetahui pengaruh variasi komposisi sekam padi dan variasi perekat terhadap parameter fisis briket tempurung kelapa. Hasil penelitian ini menunjukkan nilai densitas, nilai kadar air, nilai porositas dan nilai kadar abu, secara berturut-turut berkisar antara (0.69  - 1.12 ), (3,33% - 7,57%.), (16,66% - 31,88%.), (38,46% - 66,66%.). Analisis menunjukkan bahwa secara umum, komposisi sekam padi berbanding terbalik dengan nilai densitas, nilai kadar air dan nilai kadar abu briket dan berbanding lurus dengan nilai porositas briket. Berdasarkan nilai densitas, nilai kadar air, dan nilai kadar abu briket, dapat disimpulkan bahwa dalam penelitian ini briket dengan komposisi 40% tempurung kelapa dan 60% sekam padi memiliki kualitas yang lebih baik dibandingkan dengan komposisi lainnya. Kata Kunci : Briket, Tempurung kelapa, Sekam padi, Densitas, Kadar air, Porositas dan Kadar abu. ABSTRACT Bio-briquette is one of the fuels that comes from biomass. The biomass used in this research is coconut shell and rice husk. The aims of this research are to know the influence of variation of rice husk composition and thickness variation on physical parameters of shell briquettes. The results of this study indicate that the density, moisture value, porosity and ash values, respectively ranged between (0.69  - 1.12 ), (3,33% - 7,57%.), (16,66% - 31,88%.), (38,46% - 66,66%.). The analysis showed that in general, the composittion of rice husk is inversely proportional to density, moisture value and briquette ash value, otherwise the composition of rice husk is directly proportional briquette porosity value. Based on density value, mositure value and ash value it can be concluded that in this research the quality  of briquettes with composition 40% coconut shell and 60% rice husk is better than the other compositions. Keywords: Briquette, Coconut shell, Rice husk, Density, Water content, Porosity and Ash content.

scholarly journals Effect of freshness grade of anchovy (Engraulis encrasicolus) on the quality of marinated product stored at 4°C

2020 ◽  
Vol 7 (2) ◽  
pp. 54
Author(s):  
Nalan Gokoglu ◽  
Ilknur Ucak
Keyword(s):  
Ambient Temperature ◽  
Thiobarbituric Acid ◽  
Quality Parameters ◽  
The Other ◽  
Raw Material ◽  
Total Volatile ◽  
Total Volatile Basic Nitrogen ◽  
Engraulis Encrasicolus ◽  
Basic Nitrogen

The aim of this study was to investigate the effects of raw material freshness on the quality of marinated fish. The raw material anchovy (Engraulis encrasicolus) was divided into two batches. One batch (A) was kept at ambient temperature (20°C) for 6 h and the other one was kept at 0°C for 72 h. Then, they were marinated by soaking into marination solution containing 3% acetic acid and 8% NaCl. Total volatile basic nitrogen (TVB-N), trimethylamine (TMA), thiobarbituric acid (TBA), para-anisidine (p-Av) values in both marinated samples increased significantly during storage at 4°C. Increases in quality parameters were higher in samples produced with raw anchovy kept at 20°C compared to samples kept at 0°C. Although the sensory scores of both samples decreased during storage, higher scores were obtained for samples kept at 0°C compared to samples kept at ambient temperature. According to the results of the study, it has been determined that the quality of the raw material significantly (p<0.01) affects the quality of marinated anchovy.Keywords: fish; quality; anchovy; marinade; raw material 

scholarly journals HONEY BEE CONTRIBUTION TO ‘BORDÔ’ GRAPEVINE FRUIT PRODUCTION IN SOUTHERN BRAZIL

2017 ◽  
Vol 39 (3) ◽  
Author(s):  
MIRELI MARTIGNAGO ◽  
RAFAEL MARTINS ◽  
BIRGIT HARTER-MARQUES
Keyword(s):  
Apis Mellifera ◽  
Fruit Production ◽  
Quality Parameters ◽  
Fruit Weight ◽  
Soluble Solids ◽  
Yield And Quality ◽  
Pollinating Insects ◽  
Important Quality ◽  
Commercially Important

ABSTRACT The production of fruits and seeds of many crops is increased when bees visit their flowers pollinating them. The aim of this study was to evaluate the effect of different pollination treatments on ‘Bordô’ grapevine (Vitis labrusca L.) fruit quantity and quality. Quantitative and qualitative fruit production parameters of plants visited by Apis mellifera L., manually self- and cross-pollinated plants and plants without pollination were analyzed and compared. Fruit production was high for all treatments and all fruits presented four seeds per fruit, on average, confirming that this grape cultivar is autogamous. However, fruit set after spontaneous self-pollination was statistically lower than that of all other treatments, and pollination by A. mellifera showed the highest fruit production. Furthermore, pollination by honey bees resulted in increased biomass, reflected on fruit weight, but the content of soluble solids remained unchanged. The results of this study showed that there is no need of pollinators for fruit production of ‘Bordô’ cv., but the presence of these agents, in particular Apis mellifera, influences commercially important quality parameters such as fruit yield and fresh weight. Therefore, the use of bee hives in areas with deficit of pollinating insects may promote an improvement in yield and quality of this cultivar.

scholarly journals EFFECT OF CHOPPING STEP AND DRYING TECHNIQUE ON THE QUALITY OF ALKALI TREATED COTTONII (ATC)

2013 ◽  
Vol 7 (3) ◽  
pp. 123
Author(s):  
Singgih Wibowo ◽  
Muhamad Darmawan ◽  
Arif Rahman Hakim ◽  
Seruni Marsella
Keyword(s):  
Moisture Content ◽  
Quality Parameters ◽  
Gel Strength ◽  
Sun Drying ◽  
Drying Techniques ◽  
Drying Treatment

A research related to the production of  alkali treated cottonii (ATC) had been carried out in order to study the effect of chopping step and drying techniques on the quality of ATC produced. Four treatments were applied in the experiment, namely was copping before sun drying (treatment A); chopping after sun drying (B); chopping before mechanical drying (C); and chopping after mechanical drying (D). The quality parameters of ATC measured were gel strength, moisture content, viscosity, yield, and whiteness. The results showed that the quality of ATC was significantly affected by chopping step and drying technique, especially in ATC gel strength, viscosity and yield. However, the effect of chopping step and drying technique was insignificant to ATC moisture content and whiteness. Chopping seaweed before drying resulted in higher gel strength of the ATC but lower in yield, while chopping after drying tended to result in lower gel strength but higher viscosity and yield.

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