Poonam Rani
@teagasc.ie
Post Doctoral Researcher,
Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
RESEARCH, TEACHING, or OTHER INTERESTS
Fluid Flow and Transfer Processes, Food Science, Bioengineering, Agricultural and Biological Sciences
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Poonam Rani and P.P. Tripathy
Elsevier BV
Poonam Rani and P. P. Tripathy
Springer Science and Business Media LLC
R. Pandiselvam, Swati Mitharwal, Poonam Rani, M. Anjaly Shanker, Amit Kumar, Raouf Aslam, Yeliz Tekgül Barut, Anjineyulu Kothakota, Sarvesh Rustagi, Dolly Bhati,et al.
Elsevier BV
Poonam Rani and P.P. Tripathy
Elsevier BV
Poonam Rani and Punyadarshini Punam Tripathy
Wiley
AbstractThe study describes the solar drying characteristics of pineapple slices with incorporation of shrinkage and influence of drying and rehydration on structural alterations, color profile and microstructure. Samples were dried in mixed mode solar dryer at an air velocity of 0.5 m/s, with recorded average solar radiation, ambient and drying chamber temperature of 665 W/m2, 33°C and 65°C, respectively, from initial moisture content of 89.9% to a final moisture content of 23% in 6.5 h. Samples showed 43.7% higher drying rate and 82.25% lesser moisture diffusivity on consideration of shrinkage. Moisture diffusivity was increased with a reduction in moisture content during drying on ignoring the shrinkage, while it was initially increased and then gradually reduced at later hours when shrinkage effect was considered. The slices showed overall shrinkage of 86.95% during drying but could recover only 35–45.57% of its volume during rehydration. The water absorption and volume recovery were consistently higher at rehydration temperature of 60°C followed by 45°C and 30°C. Solar dried and rehydrated samples demonstrated overall color change of 16.80 ± 1.15 and 5.87 ± 2.5–7.56 ± 1.43, respectively. Scanning electron micrographs of solar dried samples presented collapsed cellular matrix but rehydrated samples showed porous microstructure indicating regaining of honeycomb network.Practical ApplicationsSolar drying is an essential sustainable approach to reduce the tremendous post‐harvest losses of fruits and it also offers the advantages of energy cost saving, higher affordability level and greater payback power to farmers. Present study explored the drying characteristics, followed by rehydration characteristics and effect of drying and rehydration on quality attributes of pineapple slices. Therefore, results are helpful for food processors and engineers in optimization of drying and rehydration processes to obtain best quality products, shelf‐life extension of perishable fruits. Solar dried pineapple slices will give better returns to farmers. Moreover, dried pineapple can be utilized as dried chips/snacks, powder, etc. and also can be further rehydrated to reconstitute for utilization in different value added food products like ice‐cream, cakes, flakes, granules etc.
Robina Rai, Poonam Rani, and Punyadarshini Punam Tripathy
Springer Science and Business Media LLC
Poonam Rani and P. P. Tripathy
Springer Science and Business Media LLC
Swastika Das, Poonam Rani, and P. P. Tripathy
Informa UK Limited
ABSTRACT The current study is aimed to develop a green packaging material out of betel nut fiber waste that holds up to the values of commercial food packaging. Biocomposites of betel nut fiber were prepared with varying fiber concentrations of 9, 10 and 12% and subjected to utility-based mechanical, physical, morphological and storability tests using chilies for storage. The composite with 10% fiber content exhibited superior strength features with tensile strength, compressive strength, elastic modulus, nanohardness and minimum creep rate values of 1.59 MPa, 426.23 MPa, 2.032 GPa, 99.729 MPa and 37.02, respectively. It possessed a characteristic elasto-plastic and stress-strain behavior, favorable for storage and transportation. Along with the superior mechanical properties, the selected composite manifested a lower water vapor permeability of 4.635 × 10−9 g/msPa and a minimal sorption capacity of 51.01% in comparison with cardboard sheets (currently used packaging material for chilies). Chilies stored in developed betel nut fiber composite exhibited a significantly higher value of firmness and reduced value of degradation factors as compared to that in cardboard boxes. Hence, it can be concluded that bearing all the superior properties, the developed composite is more functional than the cardboard cartons for storage and transportation.
Poonam Rani and P.P. Tripathy
Elsevier BV
Poonam Rani, Amit Kumar, Soumya Ranjan Purohit, and Pavuluri Srinivasa Rao
Springer Science and Business Media LLC
Poonam Rani and P.P. Tripathy
Elsevier BV
Amit Kumar, Poonam Rani, Soumya Ranjan Purohit, and Pavuluri Srinivasa Rao
Elsevier BV
Poonam Rani and P. P. Tripathy
Springer Science and Business Media LLC
Amit Kumar, Poonam Rani, Rahul Kumar, Vasudha Sharma, and Soumya Ranjan Purohit
Elsevier BV
Poonam Rani, Amit Kumar, Soumya Ranjan Purohit, and Pavuluri Srinivasa Rao
Springer Science and Business Media LLC
Poonam Rani and P. P. Tripathy
Springer Science and Business Media LLC
Poonam Rani, Amit Kumar, Soumya Ranjan Purohit, and Pavuluri Srinivasa Rao
Elsevier BV