scholarly journals Growth of tomato plantlets in soilless culture, enriched with egg shell waste and algae

2021 ◽  
Vol 3 (2) ◽  
pp. 161-167
Author(s):  
Handan Ertürk

In this research, it was aimed to use the Chlorella Vulgaris algae, and eggshell waste (ESW) as different mineral sources for tomato plant nutrition in soilless culture. Algae is seen as safe, sustainable energy source. Egg shell waste is known to be valuable for high calcium content and minerals therefore, has been considered as mineral enrichment source. Although there are several papers on the soil nutrition, there is not as much information on eggshell waste and algae use for plant production in soilless culture. In the controlled atmosphere of the laboratory, a set-up was constructed for pumping the liquid medium (hydroponics) circulating in the tubes holding the tomato plantlets. The liquid nutrient solutions used for soilless culture treatments were media enriched with algae, enriched with ESW and blank (hydroponic only). Research was conducted for 3 months, the final weight of harvested tomatoes and mineral uptake of the plant (stalk and tomato) for different treatments were measured. Algae added medium gave higher results in tomato weight, than ESW added and blank treatments. Results showed that algae and ESW addition led to increased Ca content in harvested tomato, as well as minerals such as B, K, Mg, and Zn. The results were as expected in terms of increase in mineral contents, but the statistics showed no significant difference between treatments.

2019 ◽  
Vol 14 (1) ◽  
pp. 35
Author(s):  
Aliffah Nurria Nastiti ◽  
Juliana Christyaningsih

Children with Autism Spectrum Disorder (ASD) have digestive disorders, therefore their diet should be gluten-free and casein-free. Gluten-free and casein-free foods tend to be low in protein. ASD children who apply a gluten-free diet and casein have a lower calcium intake and low in bone density. Catfish flour with high protein and calcium content were expected to increase the nutritional value (protein and calcium) of cookies which gluten-free and casein-free. This study was aimed to determine the effect of catfish flour substitution towards acceptance and nutritional value of gluten and casein free cookies as an alternative snack for ASD children. This study was experimental research with Completely Randomized Design. Panelists of this study were children with ASD (4-6 years) and their parents as many as 40 people. There were 4 formulas in this study, F0 was control, and 3 substitution formulas. Percentage of Flour substitution were, F2 (2%: 2%); F3 (4%: 4%); and F5 (6%: 4%). Kruskal Wallis test showed no significant difference in the level on acceptance level in taste and aroma between F0, F3, and F5. The acceptability and nutritional value's ranking showed the best formula was F5. 100 grams of F5 cookies (protein: 6.75 g; calcium: 247.51 mg) can fulfill 19% of the protein and 24.8% calcium of children RDA (4-6 years). Gluten-free and casein-free cookies with catfish (Formula 5) with enough protein and high calcium can be an alternative snack for ASD children.


Author(s):  
Bartimeues Nathan Wiederhold ◽  
◽  
Tom Lichtenberg ◽  
Roderick R. Germo ◽  
Brian Gil S. Sarinas

Protecting our natural resources is one of the important thrusts of every organization. In this study, the waters of Iloilo Batiano River, Philippines is explored. This study was conducted because there is a dearth of information on the water physico-chemical characteristics of the river. Since this is an initial assessment, this study will serve as a baseline data and the results will serve as a basis for future reference for conservation measures of the river. The present study aimed to determine the selected water physico-chemical characteristics of the river such as the electrical conductivity (EC), temperature, pH, and calcium content; assess if these parameters exceed the limit set by the DENR Administrative Order No. 20F16-08 of the Republic of the Philippines and other available literatures; and to determine if there was no significant difference in the water physico-chemical characteristics among the six sampling stations. Results revealed that EC and calcium content of the river exceed their limits except for temperature and pH levels. Furthermore, EC and temperature were statistically different among the six sampling stations except for pH values. This study concludes that the river is saline due to the mixing of saltwater and surface water as the river is near to the sea and has high calcium content that can threaten the life of freshwater aquatic organisms.


2020 ◽  
Vol 12 (3) ◽  
pp. 371-377
Author(s):  
G. OLuwole ◽  
R. O. Moruf ◽  
A. O. Lawal-Are

Meat quality in terms of its nutritional value, is a major factor when considering dietary items. This study highlighted the proximate and mineral compositions in the meat of Land Crab, Cardiosoma armatum (Herklots, 1851) fed with Trash Fish (Natural feed) and formulated diet for three (3) months. The meat proximate composition of both crabs fed the two different diets was similar, and there was no significant difference in the crude protein, fat and fiber contents of the meat (p > 0.05). The diets had no significant effects on magnesium, sodium, potassium and phosphorus contents of the meat. Crabs fed formulated diet had significantly higher calcium content of 20428.52±0.10 mg/100 g, compared with the crabs fed with Trash Fish of 18541.83±0.10 mg/100 g (p < 0.05). The pattern of mineral contents in both crabs was calcium > phosphorus > magnesium > sodium > potassium. This study suggested no negative effects of formulated diet on the meat quality. Therefore, formulated diet could be used for fattening of Land Crabs.


2017 ◽  
Vol 5 (1) ◽  
pp. 92
Author(s):  
Mamay Maslahat ◽  
Agus Taufik ◽  
Prima Wahyu Subagja

Waste Utilization of Eggs Shell as an Adsorbent for Adsorption of Metal, Pb and Cd        Egg shell waste is one of waste that not be fully utilized. Eggshell can be used as a biosorbent substance because its contain a high CaCO3 and has a natural pore structure. Eggshell waste biosorbent potentially used as an alternative to adsorp heavy metal waste that pollute much in the environment. The purpose of the study was to use the waste to become biosorbent and to investigate its potential in adsorption Pb and Cd. Research methodology were producing biosorbent and getting optimum-sorption condition. They were contact time, biosorbent weights, and the concentration of  Pb and Cd. Measurement of the concentration of Pb and Cd before and after sorption processes using instrument of Atomic Absorption Spectrophotometer (AAS) Agilent 240FS type AA. The results showed that eggshell biosorbent could adsorb heavy metals of Pb 65.99% in concentration of adsorbent of 160 ppm, contact time was 20 minutes, and biosorbent weights of 0.50 g. Adsorption of Cd was 93.16% in concentration of adsorbent was 20 ppm, contact  time  40 minutes, and biosorbent weights 0.25 g.Key words: eggshell biosorbent ,  Pb, Cd, Atomic Absorbtion Spectrophotometer ABSTRAK         Limbah cangkang telur termasuk salah satu limbah yang belum dimanfaatkan secara maksimal. Cangkang telur dapat dimanfaatkan sebagai zat penjerap yang baik karena mengandung CaCO3 yang tinggi dan memiliki struktur pori-pori alami. Limbah cangkang telur berpotensi digunakan sebagai biosorben alternatif untuk mengadsorpsi limbah logam berat yang banyak mencemari lingkungan yaitu logam berat Pb dan Cd. Tujuan penelitian ini adalah memanfaatkan limbah cangkang telur untuk dijadikan biosorben dan meneliti potensinya dalam adsorpsi logam Pb dan Cd. Tahapan penelitian terdiri atas preparasi dan pembuatan biosorben cangkang telur, dan  optimasi adsorpsi biosorben cangkang telur terhadap logam berat Pb dan Cd. Optimasi adsorpsi meliputi variabel waktu kontak optimum, bobot biosorben optimum,  dan konsentrasi adsorbat optimum. Pengukuran konsentrasi logam berat Pb dan Cd sebelum dan setelah proses adsorpsi menggunakan instrumen Atomic Absorption Spectrophotometer (AAS) Agilent tipe 240FS AA. Hasil penelitian menunjukan bahwa biosorben cangkang telur dapat mengadsorpsi logam berat Pb sebesar 65,99% pada kondisi konsentrasi adsorbat 160 ppm, waktu kontak 20 menit, dan berat biosorban sebesar 0,50 gram. Sedangkan untuk logam berat  Cd, persen adsorpsi sebesar 93,16% pada konsentrasi sorbat 20 ppm, waktu kontak 40 menit, dan berat biosorben sebesar 0,25 gram.Kata Kunci: biosorben cangkang telur, Pb, Cd, Atomic Absorption spectrophotometer.


HortScience ◽  
2018 ◽  
Vol 53 (6) ◽  
pp. 891-894
Author(s):  
Weiling Yuan ◽  
Shangyong Yuan ◽  
Zhixiong Liu ◽  
Leifu Chen ◽  
Zhengming Qiu

Calcium-rich vegetables in diet could minimize calcium deficiency and maximize good health and well-being. The aim of the present study was to determine the effect of different levels of foliar application of CaCl2 on lettuce (Lactuca sativa L.) growth and calcium concentrations with the application of organic and conventional fertilizers. Pot experiments were conducted with three calcium levels (60, 120, and 180 mg·L−1 of CaCl2) of an organic fertilizer (3N–0.8P–3.5K) and commercial conventional fertilizer (15N–15P–15K). Calcium in whole oven-ashed samples of shoots was analyzed by atomic absorption spectrometry. Nine lettuce cultivars including butterhead, romaine, and loose-leaf phenotype were tested. These results revealed that the calcium concentration in lettuce significantly increased as calcium levels increased from 60 to 180 mg·L−1. Elevated calcium concentrations in organic and conventional fertilizers increased the concentration of calcium in lettuce from 1.82% at 60 mg·L−1 to a mean of 2.15% at 120 and 180 mg·L−1. The concentration of calcium in the loose-leaf phenotype was 2.17%, 2.47%, and 3.80% higher than that in the butterhead and romaine phenotypes at 60, 120, and 180 mg Ca/L, respectively. Furthermore, the significant difference in calcium concentration among cultivars ranged from 1.27% to 3.05%. ‘Perilla Green’, ‘Breen lettuce’, and ‘Salinas’ had the highest calcium concentrations followed by ‘Jericho lettuce’, ‘Salad Bowl’ and ‘Crisp’, and ‘Kaiser’, whereas ‘Valmaine’ and ‘Rosa Green’ had the lowest calcium concentrations. The present study revealed that selecting fertilizers and cultivars with high calcium concentration can increase the total calcium content of lettuce.


2021 ◽  
Vol 16 (3) ◽  
pp. 144-152
Author(s):  
Ahmad Iskandar Setiyawan ◽  
Diah Pratiwi ◽  
Mohammad Faiz Karimy ◽  
Safna Fauziah

The preparation process needs to be carried out in the treatment of hatchery waste. The objective of the study was to determine the mineral content and characterization of the eggshell waste after preparation. An experiment was arranged on a completely randomized design (CRD). Preparation treatment consisted of; T1: shell waste watered with distilled water; T2: shell waste soaked in distilled water for 12 h; T3: shell waste soaked in 0.5% NaOH for 720 min; and T4: shell waste boiled at 80°C for 15 min and soaked in 5% H3PO4 for 15 min. The data were analyzed using Analysis of Variance (ANOVA), and if any differences, a Duncan Multiple Range Test (DMRT) post hoc tests were carried out. Composition of proximate and mineral were detected by using X-Ray Fluorescence (XRF). Results indicated that proximate analysis of the dry matter content were T4: 98.98±0.01; T3: 98.58±0.04; T2: 98.75±0.08; and T1: 98.72±0.03. The calcium content of the treatment from the highest was T3: 24.22±0.31; T1: 22.80±0.57; T2: 22.77±0.71; and T4: 21.55±0.46. It may be inferred that the treatment technique had no major impact on the eggshells physical characteristics. However, boiling treatment at 80°C for 15 min and soaking in 5% H3PO4 reduced the eggshell waste's Mg, Si, and Ca content. The addition of 0.5% NaOH immersion did not degrade Mg, Ca, and Si of eggshell waste.


1960 ◽  
Vol 54 (3) ◽  
pp. 373-377 ◽  
Author(s):  
S. Hurwitz ◽  
P. Griminger

Two groups of Single Comb White Leghorn pullets, 4 months of age, were fed 1·85 and 2·70% calcium in the diet, respectively, for twelve consecutive periods, each consisting of 4 weeks.Records of egg production and egg weight were kept throughout the entire experiment for each hen. Calcium balance and egg-shell quality studies were conducted with 16 pullets for 5 consecutive days out of each 28-day period.A highly significant difference between the lots favouring the high-calcium birds was found in egg production, shell weight, and calcium retention. There were no significant differences between the lots in percentage calcium retention, food consumption, and body weight. The high-calcium group was shown to retain more calcium from the feed and excrete more calcium through eggs. Calcium retention and percentage calcium retention increased upon commencement of egg production to reach a maximum at the second period of production. Both remained fairly constant thereafter.The hens went into negative balance early in production and returned to positive balance during the later part of the first laying year. The return to positive balance could be explained by an increase in calcium retention and a decrease in egg production. There was no reduction in shell weight, or shell weight per unit surface area during the period covered by this trial.


2017 ◽  
Vol 19 (1) ◽  
pp. 31-35
Author(s):  
Frieda Rosita Majid ◽  
Nur Hidayat ◽  
Waluyo Waluyo

Background:Moringa (Moringaoleifera Lam.) Is a plant of high nutritional value, grows scattered in the tropics and sub-tropics, but utilization is still low. Each section has its benefits Moringa one part is the Moringa leaves contain a high calcium. In 100 grams of material, fresh Moringa leaves contain as much as 440 mg of calcium in the form of flour whereas if it contains as much as 2,003 mg of calcium. One of its use in the manufacture of flakes added. Objective: Know the difference physical harateristi, organoleptic characteristic and calcium levels in flakes variations addition of Moringa leaf powder. Methods: The study is a randomized experimental design with simple, includes four kinds of treatments, two replications with two experimental units. Observations of physical characteristic were analyzed by descriptive, the organoleptic characteristic of data analysis using statistical test Kruskal-Wallis continued Mann-Whitney and methods of test calcium content using permanganometri then the data were analyzed descriptive. Results: The physical characteristics of flakes greenish-yellow, slightly fragrant aroma typical of flakes, rather unpleasant taste typical of Moringa leaves and a slightly crunchy texture. Organoleptic characteristics the color of flakes with moringa leaf powder 5%, the aroma of the flakes without addition moringa leaf powder, the flavour of flakes with additions moringa leaf powder 5% and the texture of flakes with additions moringa leaf powder 7,5% most prefered panelist and high levels calcium of flakes with additions 10% moringa leaf powder. Conclusion: There is a difference variations addition of moringa leaf powder on physical, organoleptic characteristic (color) and the level of calcium flakes.Flakes with the addition of 5% moringa leaf powder is the most prefered panelist.   Keywords:Moringa Leaf Flour, Flakes, Physical characteristic, organoleptic, Calcium


Total twenty different processed meat plant producing emulsion type sausage were histologically and chemically examined for detection of adulteration with unauthorized tissues. Results revealed that samples were adulterated with different types of animal tissues included; hyaline cartilage, tendon, spongy bone, peripheral nerve trunk, basophilic matrix, lymphatic tissue, fascia, fibrocartilage and vascular tissue. Moreover, these samples were adulterated Also, adulterated with plant tissue included; plant stem, leaves and root. Chemical analysis showed a significant difference in their chemical composition (moisture, fat, protein, ash and calcium) content. Moisture and fat content varied around the permissible limit of E.S.S. while low protein, high ash and calcium content was detected in the examined samples. Therefore, Histological and chemical examinations can be used as reliable methods to detect adultration using unauthorized addition of both animal and plant tissues in processed meat product samples which revealed a high level of falsification.


2021 ◽  
pp. 197140092110428
Author(s):  
Oscar H Del Brutto ◽  
Bettsy Y. Recalde ◽  
Robertino M Mera

Background and purpose Information on the association between anatomical variants of the Circle of Willis (CoW) and intracranial atherosclerotic disease (ICAD) is limited and results are controversial. In this population-based study, we aimed to assess whether an incomplete CoW is associated with high calcium content in carotid siphons (a reliable biomarker of ICAD) in community-dwelling older adults of Amerindian ancestry. Methods Individuals aged ≥60 years enrolled in the Three Villages Study received a head computed tomography (CT) and magnetic resonance angiogram (MRA) of intracranial vessels. The CoW was classified in complete or incomplete according to the presence or absence of one A1 segment of the anterior cerebral artery or one or both P1 segments of posterior cerebral arteries. Calcium content in carotid siphons was rated as low or high. A multivariate logistic model was fitted to assess the independent association between incompleteness of the CoW and high calcium content in carotid siphons, after adjusting for demographics and cardiovascular risk factors. Results A total of 581 individuals were enrolled (mean age: 71 ± 8.4 years; 57% women). MRA revealed an incomplete CoW in 227 (39%) individuals, and high-resolution CT disclosed high calcium content in carotid siphons in 185 (32%). A risk factor logistic regression model showed no independent association between incompleteness of the CoW and high calcium content in carotid siphons (odds ratio: 0.91; 95% confidence interval: 0.62–1.34; p = 0.631). Conclusion Study results disclosed no association between anatomical variants of the CoW and the presence of high calcium content in carotid siphons.


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