scholarly journals Pengembangan Sensor Kesegaran Buah Pepaya Potong (Carica Papaya L.) Pada Kemasan Pintar Berbasis Indikator pH Alami Kunyit (Curcuma Longa L.)

2021 ◽  
Vol 3 (1) ◽  
pp. 35-39
Author(s):  
Venny Diah Ningsih

Papaya cut easily loses quality, so a smart label is needed to detect the freshness of the papaya cut.. Smart label for detecting papaya freshness are made by immobilizing whatmann filter paper membrane on the indicator of turmeric. Smart label have a 2 minutes response time, good reproducibility is indicated by the RSD values <5%, and the usage time is 15 days. Smart label have been successfully applied to detect freshness of cut papayas on the market

2019 ◽  
Vol 4 (1) ◽  
pp. 392
Author(s):  
Saudah Saudah ◽  
Saida Rasnovi ◽  
Zumaidar Zumaidar

<p>The level of community recognition of medicinal plants in the Peusangan Selatan district of Bireun Regency is still low and has not been scientifically validated. This study aims to know about the community knowledge in used plant as traditional medicine. The method used in data collection is Participatory Rural Appraisal (PRA) and observation techniques. Inter-views were conducted semi-structurally based on a number of questionnaires. Collection of plant specimens is taken di-rectly from the location of growth assisted by the respondent or community. Primary data obtained from interviews were tabulated and  then  analyzed descriptively and presented In tables and figures. The results of the study obtained 23 species of medicinal plants that were grouped into 13 family. The most of plant used are from the  ingiberaceae and Apiaceae. Percentage of plant species that are often used based on community knowledge are Curcuma longa, Carica papaya, Jatropa curcas, Lowsoniaenermis.</p>


2019 ◽  
Vol 1 (1) ◽  
pp. 21-25
Author(s):  
Neneng Bisyaroh

Borax is widely used in making various foods such as meatballs, wet noodles, pisang molen, lemper, siomay, lontong, ketupat , and pangsit. Curcumin contained in turmeric can detect the presence of borax content in meatballs by breaking down the borax bonds to boric acid and binding them to rosa color complex compounds called boron compounds cyano curcumin complex. Making a test strip by immobilizing filter paper on the turmeric indicator which has been added polyvinyl pyrrolidone 1% and applied to the meatballs so that it can determine whether there is a borax content in the meatballs. The response time of the test strip is 30 seconds. The test strips of turmeric extract without the addition of polyvinyl pyrrolidone leave the remaining turmeric color in the meatballs while the test strip results of turmeric extract with the addition of polyvinyl pyrrolidone 1% do not leave the remaining turmeric color in the meatballs. The three meatball samples taken in the Pondok Sukorejo area did not contain borax.   Keywords: Borax Content In Meatballs, Strip Test, Turmeric Indicator. ABSTRAK   Boraks banyak digunakan dalam pembuatan berbagai makanan seperti bakso, mie basah, pisang molen, lemper, siomay, lontong, ketupat, dan pangsit. Kurkumin yang dikandung oleh kunyit dapat mendeteksi adanya kandungan boraks pada bakso dengan menguraikan ikatan–ikatan boraks menjadi asam borat dan mengikatnya menjadi senyawa kompleks warna rosa yang disebut dengan senyawa boron cyano kurkumin kompleks. Pembuatan strip test dengan cara mengimobilisasikan kertas saring pada indikator kunyit yang telah ditambah polivinil pirolidon 1% dan diaplikasikan pada bakso sehingga dapat mengetahui ada tidaknya kandungan boraks dalam bakso tersebut. Waktu respon dari strip test yaitu 30 detik. Strip test dari ekstrak kunyit tanpa penambahan polivinil pirolidon meninggalkan sisa warna kunyit pada bakso sedangkan hasil strip test dari ekstrak kunyit dengan penambahan polivinil pirolidon 1% tidak meninggalkan sisa warna kunyit pada bakso. Ketiga sampel bakso yang diambil di wilayah Pondok Sukorejo tidak mengandung boraks.   Kata kunci : Kandungan Boraks dalam Bakso, Strip Test, Indikator Kunyit


2021 ◽  
Vol 33 (12) ◽  
pp. 3099-3102
Author(s):  
Longjam Shantabi ◽  
Ganesh Chandra Jagetia ◽  
Sh.Victoria Devi ◽  
H. Lalhlenmawia

The present work was done for seven ethnomedicinal plants used by the inhabitants of Mizoram in order to investigate the presence of various phytoconstituents. The root-stock of Alocasia indica, leaves of Bidens pillosa, Chromolaena odorata, Elaeagnus caudata and Spilanthes acmella, the latex of Carica papaya and rhizomes of Curcuma caesia were dried and powdered. The chloroform extract of each sample were prepared by soaking dried powdered samples in chloroform for 72 h. The extracts were filtered using Whatman filter paper No. 42 (125 mm). The filtrates of plant extracts were preserved at 4-5 ºC for further process. Crude extracts of selected plants parts were analyzed using TLC coupled to HPLC fingerprinting, which gives some prominent and moderate peaks with different retention time, which may be a bioactive compounds.


Author(s):  
Supriya Kate ◽  
Harsha M Chatrath

Medicinal plants are used for treating and preventing the specific disease that affects the human being. There are several species of medicinal plants available in nature; amongst those researchers selected Basil, Zingiber, Azadirachtaindica, Curcuma longa, Carica Papaya, Allium sativum for research purpose. Natural compounds have been isolated from various parts such as leaves, fruits, stem, roots, and seeds of these plants. The present paper is the comparative study of variation in the physical properties like pH, critical solution temperature, and boiling point, etc. of these medicinal plants, individually, in combination ratios and also with the infected blood doped samples.


2010 ◽  
Vol 22 (2) ◽  
pp. 183-194 ◽  
Author(s):  
Erwan Leclair ◽  
Delphine Thevenet ◽  
Sophie C. Reguem ◽  
Benoit Borel ◽  
Georges Baquet ◽  
...  

This study was designed to test the reproducibility of muscle oxygenation by NIRS in children during exercise. Twelve healthy non-obese and non-trained children performed one maximal graded test, and four 6-min constant load cycle exercises. Deoxy-hemoglobin (Hb/Mb-H+) data were averaged every 1, 5, 10, 20 and 30s. Hb/Mb-H+ data averaged every 5, 10, 20 and 30s showed good reproducibility. When averaged every second, Hb/Mb-H+ values were reproducible after the first minute of exercise. Based on 1s averaged signal modeling, time period and t values for Hb/Mb-H+ were not reproducible but mean response time values showed an acceptable reproducibility.


2018 ◽  
Vol 6 (3) ◽  
pp. 416
Author(s):  
Alni Riskyna ◽  
Bambang Kuswandi ◽  
Indah Purnama Sary

    Test strip based on pararosaniline has been developed for formaldehyde detection in tofu samples. The test strip as a formaldehyde sensors has been fabricated by immobilizing pararosaniline on whatman filter paper. The test strip was characterized for liniearity, detection limit, quantitation limit, selectivity, accuracy and precision. It has response time at 4 minutes and good liniearity was achieved in the concentration range of 2-80 ppm with correlation coefficient of (r) 0.999. The detection limit and quantitation limit were 0.048 ppm and 0.161 ppm, respectively. The RSD of reproducibility was found 8.04%, where recovery was 80-110%. The life time of the test strip was 14 days when it was stored at 40C. The test strip has been successfully applied to detect formaldehyde in tofu samples. The result also shown in agreement with spectrophotometry uv-vis method.   Keywords: formalin, pararosaniline, tofu, immobilization, strip test      


Author(s):  
Nkiru E. Odimegwu ◽  
Collins N. Ubbaonu ◽  
Chigozie E. Ofoedu ◽  
Linda O. Akajiaku ◽  
Njideka E. Njoku ◽  
...  

Aim: To advance the creation of variety through food product development and innovation, a comparative study of custard products with Turmeric (Curcuma longa) and Pawpaw (Carica papaya) was done. Study Design: This study was made to fit into a one way Analysis of Variance. Place and Duration of Study: The research was carried out at the Department of Food Science and Technology laboratory, Federal University of Technology, Owerri, Nigeria, between March 2017 and August 2018. Methodology: Different ratios of corn starch to pawpaw or turmeric were used in the custard product while a commercial custard product was used as the control. The samples were evaluated for proximate composition, microbiological analysis, functional and sensory properties. Results: The water absorption capacity (1.44% to 1.64%), swelling index (5.27% to 6.77%), bulk density (0.68% to 1.55%) and gelation concentration (6.47% to 8.62%) of the turmeric treated custard and pawpaw treated custard were significantly different (P<0.05) from the control sample. The pawpaw treated custard had a higher protein and ash content compared to turmeric treated custard and control. With regards to the general acceptability of the custard products, the control was much accepted while the pawpaw sample was moderately accepted by the panellist. Microbial result showed that the pawpaw treated custard had an acceptable level of Streptococcus spp. The contamination level in the pawpaw treated custard, turmeric treated custard and the control were below the safety level recommended by International Microbiology Standard Limits for pseudomonas spp. Conclusion: The development of these custard products showed that pawpaw treated custard is acceptable and may compete favourably in the market since it has better aroma than some commercial custard present in Nigeria. It is also important to pay close attention to the handling and processing of these products so as to promote food product safety.


2018 ◽  
Vol 42 (2) ◽  
pp. 121-128
Author(s):  
M Rezuana Binte Helal ◽  
Shamim Shamsi

Five fungicides viz., Autostin 50 WDG, Dithane M 45, Greengel 72 WP, Ridomil Gold MZ 68 WG   and Tilt 250 EC exclusively were tested against three pathogenic fungi viz., Colletotrichum gloeosporioides (Penz.) Sacc., Fusarium nivale (Fr.) Ces. and Fusarium sp. associated with Carica papaya L. following poisoned food technique. At 100 ppm  Autostin showed complete growth inhibition of C. gloeosporioides, F. nivale and Fusarium sp., while  Tilt 250 EC showed complete growth inhibition of C. gloeosporioides at the same concentration. These fungicides at 400 and 500 ppm showed complete growth inhibition of F. nivale. Tilt 250 EC showed complete growth inhibition of Fusarium sp. at 300, 400 and 500 ppm. Eight plants extract, viz., Adhatoda vasica, Azadirachta indica, Curcuma longa, Ocimum sanctum, Lantana camara, Tagetes erecta, Thuja orientalis and Vitex negundo were also tested for their  efficacy at 5, 10, 15 and 20% concentrations against these pathogenic fungi. Out of the eight plant extracts, Ocimum sanctum showed highest (88.57%) radial growth inhibition of C. gloeosporioides at 20% concentration. Curcuma longa showed highest (88.55%) radial growth inhibition of F. nivale and Adhatoda vesica showed highest (80.02%) radial growth inhibition of Fusarium sp. at the same concentrations. The present investigation suggests Autostin 50 WDG and Tilt 250 EC as best inhibiting chemical fungicides for C. gloeosporioides, F. nivale and Fusarium sp. Extracts of O. sanctum, C. longa and Adhatoda vesica were found to be superior to other plant extracts tested. Journal of Bangladesh Academy of Sciences, Vol. 42, No. 2, 121-128, 2018


2018 ◽  
pp. 1-8
Author(s):  
W. C. John ◽  
T. A. Ihum ◽  
O. Olusolape ◽  
N. Janfa

This research was focused on the use of different concentration of aqueous extract of Moringa leaf and Turmeric rhizome as seed treatment agents against fungi associated with maize seeds. The study was designed using 2 x 3 factorial in completely randomised design. This research was carried out in Biology Laboratory of Federal College of Forestry, Jos from April to June 2018. Untreated maize seeds were collected from farmers in three different areas of Mazah village in Jos North LG. Maize seeds were tested for the presence of fungi by culturing on Petri dish having moist filter paper. Aqueous extract of Turmeric rhizome and Moringa leaf at 25, 50, and 75 ml concentration were used as seed treatment agent against fungi. The seeds were soaked in prepared extracts for 1 hour and then cultured on petri dish having moist filter paper, control samples were soaked in sterile water. Infested seeds were counted manually after twenty days. Results were analysed using one-way analysis of variance at 95% confidence level. Penicillium sp, Fusarium solani, Aspergillus niger and Aspergillus flavus were isolated from the untreated maize seed. Fusariumsolani gave the highest percentage occurrence of 35.48. 50 ml concentration of Turmeric rhizome has an antifungal mean value of 3.67 after 20days. The control (untreated) showed the antifungal mean value of 6.67 after 20 days. The results obtained revealed significance between the treatment and the control. The results indicate Turmeric rhizome and Moringa leaf extracts could be used in seed dressing against maize infection caused by fungi.


2020 ◽  
Vol 80 (3) ◽  
pp. 565-573
Author(s):  
T. Anwar ◽  
H. Qureshi ◽  
N. Parveen ◽  
R. Bashir ◽  
U. Qaisar ◽  
...  

Abstract Due to increased number of herbicide resistant weeds, it is needed to explore the allelopathic potential of plants as an alternative. The research was conducted to investigate allelopathic effects of Carica papaya L. leaf powder and aqueous extract on seeds as well as pre-germinated seeds of Avena fatua L., Helianthus annuus L., Rumex dentatus L., Zea mays L. and Triticum aestivum L. on filter paper and soil in Weed Management Program Laboratory, Department of Plant and Environmental Protection at PARC Institute of Advanced Studies in Agriculture, National Agriculture Research Centre, Islamabad, Pakistan. Germination percentage (%), radicle length (cm) and plumule length (cm) were parameters observed for ‘Plant leaf powder bioassay’ and ‘Aqueous extract method’. Most significant growth inhibition was observed in A. fatua seedlings in filter paper method. A. fatua radicle length was reduced by C. papaya aqueous extract (80%) and leaf powder (89%) bioassays. Plumule length was reduced under the influence of aqueous extract (57-73%) and powdered material (59-77%). The inhibitory effects on other test species were in sequence of H. annuus followed by Z. mays and R. dentatus. The aqueous extract showed non-significant effect on wheat seed germination, radicle and plumule growth. It is suggested that C. papaya aqueous extract can be used as source of weed management in wheat crop.


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