Quality Aspects and Storage Evaluation of Freeze Dried Probiotic Pineapple Lassi Powder

2017 ◽  
Vol 2 (2) ◽  
pp. 186
Author(s):  
Aisha Tabassum ◽  
V. K. Shiby ◽  
M. C. Pandey

<p>Freeze dried probiotic pineapple <em>lassi</em> powder was developed using <em>Bifidobacterium bifidum</em> (NCDC 235). Quality aspects were determined in terms of physico-chemical parameters, vitamin composition and probiotic viability. Storage changes were monitored at 25±2<sup>0</sup>C and -18±2<sup>0</sup>C for 1 year. The reconstituted <em>lassi</em> has carbohydrate content of 22.2%, thiamin 2mg which meets 2/3<sup>rd</sup> of suggested micronutrient intake goal for those working either in cold or at high altitudes. The niacin content in the product is 2.27mg, riboflavin 0.375 mg and pyridoxine 67.5mg.  An increasing trend in ΔE values 0 to 6.06 was observed at 25±2°C while no significant difference (p&lt;0.05) was observed at -18±2<sup>0</sup>C.   pH decreased from 4.71 to 4.1 at 25±2°C and to 4.3 at -18°C±2°C  after 12 months.  Browning in terms of absorbance increased significantly (p&lt;0.05) from 0.015 to 0.061 at 25±2°C.  <em>Bifidobacterium bifidum</em> count decreased from 9.55 log<sub>10 </sub>cfu.ml<sup>-1</sup> to 8.87 log<sub>10 </sub>cfu.ml<sup>-1 </sup>and 8.95 log<sub>10 </sub>cfu.ml<sup>-1</sup> after 12 months at 25±2°C and -18°C±2°C respectively. Probiotic viability did not change significantly throughout the storage period at both the temperatures. This instant powder can also be utilised as a health drink mix with reduced bulk suitable for combat conditions and in high altitudes to overcome logistic problems.</p><p> </p>

Author(s):  
Suharyanto Suharyanto ◽  
Henny Nuraini ◽  
Tuti Suryati ◽  
Irma Isnafia Arief ◽  
Dondin Sajuthi

Penelitian ini bertujuan untuk menganalisis potensi esktrak daun senduduk (EDS) sebagai food additive ditinjau dari sifat fisikokimia dan mikrobiologi sosis daging sapi selama penyimpanan dingin. Sebanyak 40 g bubuk daun senduduk dimaserasi dalam air destilata (1:4; b/v) selama 24 jam pada suhu kamar, disaring, kemudian di-freeze dry. Empat perlakuan diaplikasikan, yaitu kontrol yang mengandung daging sapi, minyak nabati, susu skim bubuk, tepung tapioka, garam, fosfat, es, dan bumbu-bumbu (kontrol); formula kontrol ditambah dengan ekstrak 0,55% (EDS), ditambah garam nitrit 0,0011% (nitrit), dan ditambah keduanya (EDS+nitrit). Hasil penelitian menunjukkan bahwa penambahan EDS dan kombinasinya dengan nitrit menurunkan susut masak sosis. Kandungan nutrisi semua sosis penelitian masuk dalam kategori SNI. Nilai pH sosis menurun akibat pemberian EDS, bukan oleh lamanya penyimpanan. Lama penyimpanan berpengaruh terhadap meningkatnya aw sosis dengan menghasilkan nilai yang sama pada penyimpanan hari ke-12 untuk semua sosis. EDS dan nitrit memberikan efek yang sama terhadap daya mengikat air (DMA) yang lebih rendah dibanding kontrol pada hari ke-0, tetapi memiliki DMA yang sama pada penyimpanan hari ke-12. Warna sosis tidak berbeda antar sosis dan lamanya penyimpanan kecuali pada sosis yang diberi nitrit memiliki derajat kemerahan lebih tinggi. Penambahan EDS dapat meningkatkan kandungan senyawa fenolat, aktivitas antioksidan pada sosis, dan menurunkan nilai TBARS serta mereduksi nitrit pada setiap masa penyimpanan. Kombinasi EDS dan nitrit menekan pertumbuhan bakteri hingga penyimpanan hari ke-12. Pemberian EDS saja hanya menekan pertumbuhan bakteri hingga hari ke-6. Meskipun demikian secara mikrobiologis, sosis masih masuk kategori SNI kecuali keberadaan Salmonella yang muncul pada hari ke-9.This study aimed to analyze the potency of senduduk leaf extracts (SLE) as a food additive to physicochemical and microbiological properties of beef sausages during refrigerated storage. A-40 g powder was macerated with distilled water (1:4; w/v) for 24 h at room temperature, filtered, and then was freeze-dried. Four treatments were employed including control containing beef, vegetable oil, skimmed milk powder, tapioca, salt, phosphate, ice, and seasons (control); control added extract 0.55% (SLE); sodium nitrite 0.0011% (nitrite); and both (SLE+nitrite). The results showed the addition of SLE and SLE+nitrite decreased the cooking loss. The nutritional content of all sausages fit SNI (Indonesia Nasional Standard) category. The pH of sausage decreased caused by SLE, not by storage. The storage affected increasing aw sausages by yielding the similar value at day 12th. SLE and nitrites exerted an equivalent effect on water holding capacity (WHC) compared to control on day 0 but gave the same WHC at day 12 storage. The Sausage color was not different between treatment and storage except for sausage added with nitrite, which had a higher redness. The SLE increased phenolic compounds, antioxidant activity, but decreased the TBARS value and reduced nitrite residue at each storage period. The SLE and nitrite combination declined the bacterial growth until the 12th day of storage, while SLE delayed bacterial growth until day 6. Nevertheless, microbiologically, sausage was still included in the SNI category except for the presence of Salmonella on day 9.


2014 ◽  
Vol 24 (1-2) ◽  
pp. 149-158
Author(s):  
MAK Talukder ◽  
MA Hashem ◽  
SME Rahman ◽  
MS Islam ◽  
MM Hossain ◽  
...  

The experiment was conducted to find out the effect of salt and storage temperature on the physico-chemical properties of beef nugget. For this purpose nugget samples were divided into two parts; one is called fresh nugget and another is preserved nugget at different temperatures. Then the fresh samples as well as the preserved samples were divided into four subdivisions. Then these are treated with different salt levels (0, 1.5, 3 and 5% salt level). The preserved samples were stored at 4oC and -20oC. Samples preserved at 4oC were stored in the refrigerator for 21 days and were analyzed on 7th day, 14th day and 21th day and samples preserved at -20oC were stored in the refrigerator for 60 days and were analyzed on 15th day, 30th day, 45th day and 60th day of preservation. Dry matter and Ash content of all the samples increased significantly (P<0.01) with the advancement of storage time and salt level. CP% of fresh samples was 22.31, 20.55, 20.13 and 20.55 at 0, 1.5, 3 and 5% salt concentration. CP, DM, Ash and Fat also varied among the samples significantly (P<0.01). Highly significant difference is observed in preserved samples than in fresh samples at different salt levels. Fresh nugget treated with 1.5% salt found to be more acceptable in terms of sensory evaluation. So we recommend fresh nugget to be best for consumption.DOI: http://dx.doi.org/10.3329/pa.v24i1-2.19280 Progress. Agric. 24(1&2): 149 - 158, 2013


Author(s):  
Md. Golam Rasul ◽  
Bhaskar Chandra Majumdar ◽  
Faria Afrin ◽  
Mueena Jahan ◽  
Chunhong Yuan ◽  
...  

Sun dried (T. fasciata) was stored with airtight polyethylene bags at room temperature to investigate the changes in physical, chemical, microbiological and sensory characteristics for 90 days. Sensory and physical (water reconstitution, pH) characteristics of dried T. fasciata showed that the product was acceptable up to 60 days of storage. Moisture content of T. fasciata was significantly increased from 15.06% to 17.80% during the storage period. No significant difference was observed in protein, lipid and ash content on dry matter basis during storage. However, amount of lipids of the dried fish was slightly decreased with the increasing of storage time. The pH value of dried T. fasciata was decreased significantly from 6.51 to 5.94 during the storage period. The peroxide value was increased from 13.84 to 27.87 meq/Kg of lipid. Similarly, acid value and conjugated diene of the lipids were increased significantly, and this result suggested that lipid oxidation occurred over this period of time. Microbial load was also increased from 1.13 to 8.37 log CFU/g with the increasing of storage time. Results of this study showed that the product was oxidized marginally during the storage period and suitable for human consumption up to 60 days.


Author(s):  
Fábio Nakao ARASHIRO ◽  
Michelle Tavares Galotto NANTES ◽  
Pedro Gregol da SILVA ◽  
Key Fabiano Souza PEREIRA ◽  
Muryllo Eduardo Sales dos SANTOS

ABSTRACT Objective: This research study aims at conducting an in vitro evaluation of crack formation in freshly extracted teeth after undergoing different storage and decontamination methods. Methods: 60 erupted upper third molars conventionally extracted using forceps # 210h (quinelato surgical instruments, rio claro - sp) and randomly distributed in three groups (n = 30): group 1 - storage in dry environment for 30 days, group 2 - sterilization in autoclave and storage for 30 days in distilled water, and group 3 - 10% formaldehyde decontamination for 14 days and storage in distilled water for additional 30 days. after the storage period, teeth had their roots transversely sectioned at 2, 4 and 6 mm below the root apex using a low rotation diamond disk under constant cooling. the evaluation of fragments was performed using a 30-time magnification microscope. Results: Cracks were seen only in group 1 and the chi-square statistical test with 5% significance level showed a statistically significant difference comparing the dry storage group to the others. Conclusion: The storage of extracted teeth in a dry environment influences the formation of dentinal defects.


Author(s):  
Er. K. Lavanya ◽  
D. Bhaskara Rao ◽  
L. Edukondalu ◽  
R. Lakshmypathy ◽  
V. Srinivasa Rao

Mango fruits Cv. Neelum treated with ethephon of different concentrations i.e. 250, 500, 750 and 1000 ppm for five minutes at different temperature conditions viz., 16, 20, 24 and 28ºC with 80% RH ripened in ripening chamber and untreated fruits kept at ambient temperature (30-34ºC). Then the mango fruits were analyzed for physico-chemical changes and sensory qualities. It was found that mango Cv. Neelum ethephon dip treatment placed in the ripening chamber triggered the ripening process and showed that the significant increasing trends in L*, a*, b* values of colour, TSS (°Brix), PLW (%), reducing sugars (%), pH and decreasing trends in firmness (N), acidity during ripening in all the treatment combinations during advancement of storage period in ripening chamber. It was observed that mango fruits Cv. Neelum ripened by ethephon dip treatment of 750 ppm for 5 minutes at 20ºC, 80% RH showed better results in respect of a high overall acceptability score of 8.50.


CORD ◽  
2012 ◽  
Vol 28 (1) ◽  
pp. 8
Author(s):  
K.D.P.P. Gunathilake

King coconut (Cocos nucifera var. aurantiaca) water is a natural, nutritious and healthy beverage. However, it is underutilized in terms of value addition with extended shelf life.  Therefore, an attempt was made to develop the physico-chemical and processing parameters for the value addition of King coconut water with extended shelf life. King coconut water was analyzed for sugar, minerals and vitamin C content based on reviewed methods. Studies were conducted to identify the optimum pH, total soluble solid (TSS), type of acidulant and pasteurization conditions based on sensory properties of the product using semi trained panelists. Processed King coconut water was packed in three different packages and stored at refrigerated (4°C) condition for two months. Changes in pH, TSS and titratable acidity were evaluated in two weeks intervals throughout the storage period. The results showed that optimum pH, TSS, type of acidulant and pasteurization conditions were 4.4, 9, malic acid and 70˚C/15 sec., respectively. The product was microbiologically (less than 50 CFU/ml) safe for consumption even after 8 weeks of storage. These storage studies revealed that the changes in pH, TSS and titratble acidity of King coconut water packed in three packaging materials had no significant difference (p<0.05) during refrigerated storage.


2020 ◽  
Vol 39 (01) ◽  
Author(s):  
A. Vanathi ◽  
R. Palani Dorai

Flavour is the most important positive attribute in ice cream. However its stability in ice cream during processing and storage get decreased. In order to limit its degradation in ice cream during processing and storage it is beneficial to encapsulate flavor compounds. The aim of this study is to evaluate flavor encapsulated (FE 1 and FE 2) compounds, physico-chemical of different flavor encapsulated ice cream (FEIC 0, FEIC 1, FEIC 2) and sensory qualities of different flavor encapsulated ice cream on different days ( 0 day, 7thd day and 15th day). The ice cream were prepared with 1.35 % of FE 1 and FE 2 in ice cream and were analyzed for physico-chemical and sensory qualities and compared with regular ice cream (control – FEIC 0). The result of the present study shows that shape of the aggregated encapsulated flavour were irregular, but it is spherical in shape when it is dispersed. The size of the aggregated FE 1 and FE 2 did not differ significantly, but size of the dispersed and solubility of different encapsulated flavor differed significantly ( 0.01). Among physico-chemical properties, ice cream incorporated with encapsulated flavour significantly increased ( 0.05) viscosity and melting resistance of the ice cream, but it has not having any influence on pH, titratable acidity (%), fat (%), total solid (%) and specific gravity when compared with control ice cream (FEIC 0). In sensory qualities, colour and appearance of different flavour encapsulated ice cream did not differ significantly on different storage period. The intensity of flavour was significantly higher ( 0.01) in FEIC 0 on 0th day and non-significant among treatments on 7th day. But on 15th day the intensity of flavour was significantly higher in FEIC 1 and FEIC 2 when compared with FEIC 0 were analyzed using sensory panelist. Thus the study revealed that incorporation of FE compound in ice cream improves flavor stability in ice cream without affecting much of its physico-chemical properties.


Author(s):  
Rajni Modgil ◽  
Arun Prabha ◽  
Anupama Sandal

Papaya and mango pulp was blended in different ratios i.e. 100:0, 85:15, 70:30 and 55:45 respectively to prepare squash. Prepared squash was analysed for various nutritional and physico-chemical characteristics. Parameters studied were pH, acidity, TSS, Beta carotene total sugars reducing and non reducing sugars. Squash was packaged in glass bottles and stored for six months to assess the shelf life after storage at ambient temperature. The samples were analysed at an interval of one month. The results revealed that a good quality squash can be prepared by blending papaya and mango. With increase in storage period the pH (2.96 to 3.03)and reducing sugar content of the squash increased, from 20.34 to 22.83 whereas the acidity, T SS, ascorbic acid, â carotene content, total and non-reducing sugars decreased significantly. Initial TSS in controle sample was 44.12 which decreased to 43.91 % after six month storage. Papaya pulp can be blended with mango pulp for developing squash.


2015 ◽  
Vol 4 (2) ◽  
pp. 143
Author(s):  
Olajide E. Adedeji ◽  
Julian C. Anuonye ◽  
Fortune A. Ekundayo ◽  
Taye F. Olaoye ◽  
Abibat O. Babalola ◽  
...  

<p>Tomato purees were produced from <em>De Rica </em>and<em> Roma</em> cultivars of tomato, packaged in high density polyethylene and stored at ambient temperature (32±2 ºC). The stored purees were analysed weekly for physicochemical composition, sensory attributes and microbial load until they became unwholesome. There was a significant (p&lt;0.05) falling in Titratable Acidity (TTA) within the first five and six weeks for <em>De Rica</em> and <em>Roma</em> purees respectively. TTA values dropped from 12.43 to 8.40 and 10.69-7.43 for <em>De Rica</em> and <em>Roma</em> purees respectively. Total solid (TS) of the purees decreased significantly (p&lt;0.05) from 16.2% to 9.08% for <em>De Rica</em> puree and 17.89% to 9.99% for <em>Roma</em> puree within the first four weeks of storage and became stable at the later weeks of storage. <em>Roma</em> puree had higher TS throughout the storage period. Total Insoluble Solid of the purees increased significantly from 3.07% and 4.01% for <em>De</em><em> </em><em>Rica</em> puree and 2.3% and 3.44% for <em>Roma</em> puree within the first week of storage. The values however, decreased significantly is (p&lt;0.05) at the second week of storage from 4.01% to 1.19% for <em>De Rica</em> puree and 3.44% to 1.89% for <em>Roma</em> puree. The bulk density of the samples decreased significantly (p&lt;0.05) from 1.14g/ml to 0.95 g/ml for <em>De Rica</em> puree and 1.12 g/ml to 0.95 g/ml for <em>Roma</em> puree through the storage period. There was an insignificant (p&gt;0.05) increase in total bacteria count from 140 CFU/g to 320 CFU/g for <em>De Rica</em> puree and 126 CFU/g to 280 CFU/g for <em>Roma</em> puree within the first two weeks of storage. The values increased significantly (p&lt;0.05) from 640 CFU/g to 137,000 CFU/g for <em>De Rica</em> puree and 590 CFU/g to 122,000 for <em>Roma</em> puree from the third to the tenth week of storage. There was no significant difference (p&gt;0.05) between the freshly produced <em>De Rica</em> puree, <em>Roma</em> puree and the commercial sample in appearance, colour, taste and overall acceptability before and during storage. Marked rejection of the purees was observed at the eight week of storage.</p>


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