scholarly journals Drying parameters influence on ‘Ameclyae’ Opuntia ficus prickly pear oil quality

2018 ◽  
Author(s):  
H. Desmorieux ◽  
L. Hassini
Keyword(s):  
Relative Humidity ◽  
Seed Oil ◽  
Oil Quality ◽  
Tocopherol Content ◽  
Empirical Modeling ◽  
Prickly Pear ◽  
Convective Drying ◽  
Air Velocity ◽  
Pressing Method

The aim of this work is to study the effects of drying conditions on the quality of extracted pricly pear seed oil, specifically α-tocopherol content. Drying experiments were carried on following a full 23 factorial design using a vertical drying tunnel. The temperature range was 45 to 70°C, relative humidity range was 15 - 30% and   air velocity was 1 and 2 m/s. The Midilli-Kucuk model was found with satisfaction describing the seed air drying curves with a correlation coefficient of 0.999 and a standard error of 0.01. For each drying condition, the extraction of fixed oil seeds was performed at cold using mechanical pressing method. The oil quality was evaluated on the basis of the a-tocopherol content. The a-tocopherol was identified and quantified by high-performance liquid chromatography (HPLC-UV). According to the experimental results, it was found that convective drying of thin layer of seeds at soft air conditions, drying temperature of 45°C, relative humidity of 15% and air velocity of 1m/s give the optimal quality of extracted oil in terms of a-tocopherol content.Keywords: prickly pear seeds;  convective drying; semi-empirical modeling; a-tocopherol seed oil; optimization.

scholarly journals Impact of modified industrial wet pressing on the quantity and quality of Nile perch oil extracted from the viscera.

2019 ◽  
Author(s):  
DENNIS OTIENO ◽  
Nyaboke Hilda ◽  
Cyprian Odoli ◽  
Nyamweya Chrispine ◽  
Christopher Aura
Keyword(s):  
Fish Oil ◽  
Oil Quality ◽  
Maximum Yield ◽  
Extraction Process ◽  
Effect Of Temperature ◽  
Nile Perch ◽  
Omega 3 ◽  
Pressing Method ◽  
Wet Pressing

Global fish oil production is between 1 to 1.25 million tones and primarily exploiting fatty fish such as menhaden, herring, pilchards, anchovy, and sardine among others. The main producing countries include Japan, USA, Chile and Peru. Yet, fish oil from developing countries end up as bio waste since only the flesh is utilized. This paper discusses a simple approach for utilizing the fish bio waste to produce oil andhow the oil quality and quantityis impacted by the extraction process. The visceral organs were collected from fish filleting factory and markets in Kisumu town and oil extracted by modified wet pressing method adopted from Blight and Dyer (1959). The effect of temperature and serial washing on the oil quality and quantity was assessed from extraction temperatures at800C, 900C, 950C and 970C, while employing three serial washing using distilled water and pineapple juice. The quality of the oil produced was then determined based on the proportion of omega -3, vitamin A and E, peroxide value, iodine value and free fatty acids. Statistical analysis was conducted using R-data analysis software at P<0.05 and ANOVA to determine significance. Results indicate that maximum extraction efficiency was achieved at 800C for 30 minutes where 157.66g of oil was extracted, when compared to 156.56g at 90ºC,156.49g at 95ºC,155.84g at 97ºC from a tissues of 171.25gin each case. It was concluded that the temperature manipulation procedures as per this study was reliable to produce maximum yield and can be adopted by oil producing plants. The study targets to utilize fish-biowaste which is dumped in aquatic systems that depletes dissolved oxygen levels in such ecosystems.

scholarly journals Reduction of carcass weight loss in swines

2013 ◽  
Vol 33 (1) ◽  
pp. 21-25
Author(s):  
Iliani Patinho ◽  
Elizandro Pruence Nickele ◽  
Jean Carlos Brustolin ◽  
Magdalena Lajús Travi
Keyword(s):  
Weight Loss ◽  
Heat Shock ◽  
Relative Humidity ◽  
Storage Temperature ◽  
Microbiological Quality ◽  
Internal Temperature ◽  
Air Velocity ◽  
Reduce Weight Loss ◽  
Fast Freezing

The carcass fast freezing is one of the aspects of great prominence to the final quality of pork. In order to reduce weight loss, two experiments were performed, in which the carcasses were monitored during 20 hours to evaluate the main variables involved during two different freezing processes (standard and proposed) as follows: microbiological quality, storage temperature, relative humidity (RH) and air velocity. In experiment I, the carcasses were submitted to a system using heat shock (2 hours in static tunnel at - 25 °C) and subsequently sent to the equalization chamber. In experiment II, the carcasses were submitted to the heat shock and stored in a chamber with RH between 80-85%. The chambers used in both experiments showed no change in the variables studied (internal temperature of 5 °C and air velocity of approximately 0.3 m/s). However, the relative humidity in the three chambers was evaluated and significant differences were found; as a consequence, high levels of weight loss were observed in both chambers In experiment II there was an increase of RH, which reduced the weight loss of the carcasses.

scholarly journals Effect of Cassava Starch Coating on the Quality and Shelf Life of Prickly Pear in Refrigerated Storage

2019 ◽  
pp. 1-11
Author(s):  
Valtânia Xavier Nunes ◽  
Núbia Xavier Nunes ◽  
Juceliandy Mendes Da Silva ◽  
Sarah Nadja Araújo Fonsesa ◽  
Mariana Oliveira De Jesus ◽  
...  
Keyword(s):  
Weight Loss ◽  
Relative Humidity ◽  
Shelf Life ◽  
Cassava Starch ◽  
Prickly Pear ◽  
Soluble Solids ◽  
Maturation Stage ◽  
Nutritional Health ◽  
Nutritional Characteristics

In Brazil, the prickly pear has been gaining more and more attention, mainly due to its nutritional health promotion benefits. However, its postharvest conservation is still incipient The aim of this study was to evaluate the use of cassava starch in different concentrations in relation to quality preservation and postharvest shelf life prolongation of prickly pear stored at 10 °C and relative humidity of 95%. Fruit were harvested at maturation stage III, in plants with 8 years of age, in the municipality of Janaúba - MG. Then they were selected, sanitized and immersed in sulutions of cassava starch at 0; 1; 2 and 3% for 1 minute and stored at 10 ± 1 ◦C and relative humidity of 95 ± 5%, for 25 days, and evaluated every five days. The designed trial consisted of a completely randomized trial, in a 4x6 factorial scheme: four concentrations of cassava starch and six periods of evaluations (0, 5, 10, 15, 20 and 25 days), with four replications. Fruit were evaluated for physical, chemical and nutritional characteristics. During storage were observed weight loss, firmness loss, chlorophyll degradation, acidity reduction and ascorbic acid, with increase of soluble solids, total sugars and carotenoids in fruit. The higher the cassava starch concentration, the greater the maintenance of fruit quality. The 3% cassava starch coating was the most efficient at delaying the weight loss, decay, softening and wilting in the fruits, the main characteristics that affect the quality of prickly pear. However, this concentration presented, as an inconvenience, coating peeling at the end of storage.

scholarly journals Uji Kualitas Minyak Biji Adas (Foeniculum vulgare) yang diperoleh dengan Metode Soxhletasi

Jurnal MIPA ◽  
2013 ◽  
Vol 2 (2) ◽  
pp. 124
Author(s):  
Vinny Ch. O. Kojong ◽  
Meiske S. Sangi ◽  
Julius Pontoh
Keyword(s):  
Refractive Index ◽  
Seed Oil ◽  
Oil Quality ◽  
Acid Number ◽  
Average Yield ◽  
Foeniculum Vulgare ◽  
Main Component ◽  
Flavoring Agent ◽  
Fennel Oil

Telah dilakukan penelitian untuk menguji kualitas minyak biji adas (Foeniculum vulgare) yang diperoleh dengan metode soxhletasi. Biji adas dikenal sebagai allround flavoring agent karena memiliki aroma yang khas, sehingga banyak digunakan dalam bidang farmasi maupun industri.  Minyak adas tergolong dalam minyak atsiri dengan komponen utamanya anetol yang memberikan aroma yang harum. Penelitian ini bertujuan untuk menganalisis kualitas minyak biji adas yang dihasilkan dengan menggunakan metode soxhletasi. Biji adas diekstraksi dengan menggunakan metode soxhletasi. Rendemen yang diperoleh diuji kualitasnya berdasarkan standar Food Chemical Codex. Hasil penelitian menunjukkan rendemen rata-rata minyak biji adas adalah 34,95%. Minyak adas hasil soxhletasi yang diuji kualitasnya diperoleh hasil yang baik dengan nilai indeks bias 1,4779, bobot jenis 0,9873, kelarutan dalam alkohol 90% pada perbandingan 1:3 dan jernih pada perbandingan 1:7, dan bilangan asam rata-rata 2,81. Hal ini menunjukkan bahwa kualitas minyak biji adas dengan metode soxhletasi memberikan hasil yang baik.A research aimed to determine fennel (Foeniculum vulgare) seed oil quality obtained by soxhletation had been accomplished. Fennel seed is known as all round flavoring agent for its distinctive odour and it is widely used in pharmaceutical and industrial fields. Fennel oil is an aromatic oil that contains anetol as its main component which gives a fragrant aroma. The objective of this research was to analyze the quality of fennel seed oil produced by using soxhlet. The analysis was based on the description by Food Chemical Codex. The average yield of fennel seed oil was 34.95% with refractive index of 1.47798 and specific gravity of 0.98732. The oil was soluble in alcohol 90% at a ratio of 1:3 and produce a clear miscible liquid at a ratio of 1:7. In additon, it had acid number of 2.809. The results showed that good quality fennel oil could be obtained by soxhletation.

scholarly journals Impact of modified industrial wet processing stages on the quantity and quality of Nile perch (Lates niloticus) oil extracted from the visceral organs

2019 ◽  
Author(s):  
DENNIS OTIENO ◽  
Nyaboke Hilda ◽  
Cyprian Odoli ◽  
Nyamweya Chrispine ◽  
Aura Christopher
Keyword(s):  
Fish Oil ◽  
Oil Quality ◽  
Maximum Yield ◽  
Extraction Process ◽  
Effect Of Temperature ◽  
Nile Perch ◽  
Pressing Method ◽  
Pineapple Juice ◽  
Visceral Organs

Global fish oil production is between 1 to 1.25 million tonnes and primarily exploiting fatty fish such as menhaden, herring, pilchards, anchovy, and sardine among others. The main producing countries include Japan, USA, Chile and Peru. Yet, fish oil from developing countries end up as bio waste since only the flesh is utilized. This paper discusses a simple approach for utilizing the fish bio waste to produce oil and how the oil quality and quantityis impacted by the extraction process. The visceral organs were collected from fish filleting factory and markets in Kisumu town and oil extracted by modified wet pressing method adopted from Blight and Dyer (1959). The effect of temperature and serial washing on the oil quality and quantity was assessed from extraction temperatures at 800C, 900C, 950C and 970C, while employing three serial washing using distilled water and pineapple juice. The quality of the oil produced was then determined based on the proportion ofomega -3, vitamin A and E, peroxide value, iodine value and free fatty acids. Results indicate that maximum extraction efficiency was achieved at 800C for 30 minutes where 156.05g of oil was extracted, when compared to 155.32g at 90ºC,155.24g at 95ºC,155.23g at 97ºC from a tissues of 171.25gin each case. The data was then analyzed using ANOVA at P<0.05 and post hock to determine significance. It was concluded that the temperature manipulation procedures as per this study was reliable to produce maximum yield and can be adopted by oil producing plants.

scholarly journals Seed Oil Quality and Cultivation of Sambucus williamsii Hance as a New Oil Crop

2021 ◽  
Vol 8 ◽  
Author(s):  
Shuyue Wang ◽  
Yongxin Yu ◽  
Mingxiao Cui ◽  
Kehai Liu ◽  
Kewu Liu
Keyword(s):  
Genetic Diversity ◽  
Nutritional Value ◽  
Morphological Analysis ◽  
Seed Oil ◽  
Unsaturated Fatty Acids ◽  
Oil Quality ◽  
Raw Material ◽  
Gas Chromatography Mass Spectrometry ◽  
Oil Crops

Natural edible oil derived from wild non-cultivated oil crops contributed to human daily nutritional diversity and disease prevention. It was important to investigate the nutritional value of these oils and the feasibility of crop cultivation. The present study focused on the assessment of seed oil quality of Sambucus williamsii Hance (SWH) and its molecular breeding. Wild SWH seed oil was extracted by supercritical CO2 technology and the composition of the oil was determined by using gas chromatography mass spectrometry (GC-MS) analysis. The oil content of SWH seeds reaches around 40%. Its seed oil was found to be rich in unsaturated fatty acids, such as 24.24% of linolenic acid and 50.56% of linoleic acid, and vitamin E (25.92 mg kg−1). The cytotoxicity and heavy metal analysis showed SWH seed oil was safe for consumption. In addition, the SWH strains with excellent characteristics were screened out for cultivation according to genetic diversity and morphological analysis. Amplified fragment length polymorphism (AFLP) markers were used to evaluate the genetic diversity of 28 accessions of wild SWH seeds and 5 accessions were selected to cultivate. Among them, two strains of SWH (sample 3 and 6) with high yielding (275.7 and 266.8 area yield kg−1) were suitable for dense planting and could be used to establish the raw material forest of SWH seed oil. The results of this study indicated the potential of development of selected SWH as novel oil crops and their wide cultivation.

scholarly journals Identifying SSR Markers Related to Seed Fatty Acid Content in Perilla Crop (Perilla frutescens L.)

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1404
Author(s):  
Hyeon Park ◽  
Kyu Jin Sa ◽  
Do Yoon Hyun ◽  
Sookyeong Lee ◽  
Ju Kyong Lee
Keyword(s):  
Fatty Acid ◽  
Ssr Markers ◽  
Acid Content ◽  
Seed Oil ◽  
Fatty Acid Content ◽  
Oil Quality ◽  
Health Food ◽  
Breeding Programs ◽  
Perilla Seed

Perilla seed oil has been attracting attention in South Korea as a health food. Five fatty acids of 100 Perilla accessions were identified as follows: palmitic acid (PA) (5.10–9.13%), stearic acid (SA) (1.70–3.99%), oleic acid (OA) (11.1–21.9%), linoleic acid (LA) (10.2–23.4%), and linolenic acid (LNA) (54.3–75.4%). Additionally, the 100 Perilla accessions were divided into two groups (high or low) based on the total fatty acid content (TFAC). By using an association analysis of 40 simple sequence repeat (SSR) markers and the six Perilla seed oil traits in the 100 Perilla accessions, we detected four SSR markers associated with TFAC, five SSR markers associated with LNA, one SSR marker associated with LA, two SSR markers each associated with OA and PA, and four SSR markers associated with SA. Among these SSR markers, four SSR markers (KNUPF14, KNUPF62, KNUPF72, KNUPF85) were all associated with TFAC and LNA. Moreover, two SSR markers (KNUPF62, KNUPF85) were both associated with TFAC, LNA, and OA. Therefore, these SSR markers are considered to be useful molecular markers for selecting useful accessions related to fatty acid contents in Perilla germplasm and for improving the seed oil quality of Perilla crop through marker-assisted selection (MAS) breeding programs.

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