Fungal Diversity in Xinjiang Traditional Cheese and its Correlation With Moisture Content

Author(s):  
Kaili Zhang ◽  
Yan Zhang ◽  
Shan Li ◽  
Yuhui Li ◽  
Baokun Li ◽  
...  
Author(s):  
Sahib Alam ◽  
Shima Bibi, Murad Ali

The study aimed to investigate the effect of short-term postharvest storage on the fungal diversity and physicochemical and sensory quality of fresh fruits viz. apple, banana, grapes, guava and mango. The fruits were stored at ambient room temperature (28°C) and evaluated for fungal diversity, total fungal and bacterial counts, moisture content, water activity (aw), vitamin C content and sensory characteristics such as appearance, odour, taste, texture and overall acceptability at the initial (0 day), 7 and 14 days of storage. The dominant fungal genera isolated from all the fruits were Aspergillus niger (35.38%), Penicillium spp. (28.24%), Rhizopus stolonifer (25.35%) and Aspergillus flavus (21.35%) after 14 days of storage. Both the total fungal and bacterial counts increased significantly over storage time. However, the percent moisture content and aw level of all the fruits decreased significantly (P < 0.05) after 14 days storage. The storage time did not significantly (P > 0.05) affect the vitamin C content of fruits. Regarding sensory quality, apple got the highest score for appearance, odour, taste, texture, and overall acceptability followed by grapes whereas banana and guava got the lowest score for overall acceptability after 14 days storage. It was concluded that, at ambient room temperature a diversity of fungal species attacks fresh fruits and their shelf life, nutritional and sensory quality start deteriorating as early as after 3 days of storage.


2020 ◽  
Vol 11 ◽  
Author(s):  
Chibundu N. Ezekiel ◽  
Oluwawapelumi A. Oyedele ◽  
Bart Kraak ◽  
Kolawole I. Ayeni ◽  
Michael Sulyok ◽  
...  

1968 ◽  
Vol 19 (03/04) ◽  
pp. 423-429 ◽  
Author(s):  
G. M Thelin ◽  

SummaryA stable, lyophilized AHF reference plasma has been prepared from pooled plasma from at least 50 normal healthy donors and standardized against a primary standard of fresh plasma from 20 healthy male donors aged 20 to 40. Average AHF potency of a typical lot is 98.8%, and moisture content is less than 0.5%. Under storage at -25° C, this AHF reference plasma is stable for at least 18 months. It has been used in several major coagulation laboratories, and has given consistently satisfactory and reproducible results in AHF assays.


TAPPI Journal ◽  
2013 ◽  
Vol 12 (11) ◽  
pp. 21-26 ◽  
Author(s):  
CHAO TIAN ◽  
LINQIANG ZHENG ◽  
QINGXIAN MIAO ◽  
CHRIS NASH ◽  
CHUNYU CAO ◽  
...  

The Fock test is widely used for assessing the reactivity of dissolving pulp. The objective of this study was to modify the method to improve the repeatability of the test. Various parameters that affect the repeatability of the Fock test were investigated. The results showed that Fock reactivity is dependent on testing conditions affecting the xanthation between cellulose and carbon disulfide, such as the moisture content of the pulp sample, sodium hydroxide (NaOH) concentration, xanthation temperature, carbon disulfide dosage, and xanthation time. The repeatability of the test was significantly improved using the following modified testing procedure: air dried sample in the constant temperature/humidity room, xanthation temperature of 66°F (19°C) in a water bath, xanthation time of 3 h, NaOH concentration of 9% (w/w), and 1.3 mL carbon disulfide.


TAPPI Journal ◽  
2013 ◽  
Vol 12 (1) ◽  
pp. 45-50 ◽  
Author(s):  
LAURENCE SCHIMLECK ◽  
KIM LOVE-MYERS ◽  
JOE SANDERS ◽  
HEATH RAYBON ◽  
RICHARD DANIELS ◽  
...  

Many forest products companies in the southeastern United States store large volumes of roundwood under wet storage. Log quality depends on maintaining a high and constant wood moisture content; however, limited knowledge exists regarding moisture variation within individual logs, and within wet decks as a whole, making it impossible to recommend appropriate water application strategies. To better understand moisture variation within a wet deck, time domain reflectometry (TDR) was used to monitor the moisture variation of 30 southern pine logs over an 11-week period for a wet deck at the International Paper McBean woodyard. Three 125 mm long TDR probes were inserted into each log (before the deck was built) at 3, 4.5, and 7.5 m from the butt. The position of each log within the stack was also recorded. Mixed-effects analysis of variance (ANOVA) was used to examine moisture variation over the study period. Moisture content varied within the log, while position within the stack was generally not significant. The performance of the TDR probes was consistent throughout the study, indicating that they would be suitable for long term (e.g., 12 months) monitoring.


2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Aulia Alfi

Virgin Coconut Oil (VCO) adalah bahan alami yang memiliki sifat antimikroba (antivirus, antibakteri, dan antijamur). Sehingga VCO dapat memberikan efek pengawet pada bahan makanan, salah satunya adalah roti manis. Penelitian ini dilakukan untuk mengevaluasi pengaruh VCO terhadap karakteristik (fisik dan kimia) dan umur simpan roti manis. Roti manis dianalisis secara fisik (tekstur dan porositas) dan kimia (kadar air, kadar abu, kadar lemak, kadar protein, dan kandungan karbohidrat), dan analisis umur simpan dengan FFA, uji organoleptik dan jamur setiap dua hari selama delapan hari penyimpanan di suhu ruang. Variasi perlakuan roti manis adalah dari rasio konsentrasi VCO: margarin: mentega, K (0%: 8%: 8%); A (4%: 6%: 6%); B (8%: 4%: 4%), C (12%: 2%: 2%); D (16%: 0%: 0%). Hasil penelitian menunjukkan bahwa VCO tidak memiliki pengaruh yang signifikan terhadap karakteristik fisik dan karakteristik kimia roti manis. Namun, VCO berpengaruh signifikan terhadap kadar air roti manis yang dihasilkan, roti manis K memiliki kadar air tertinggi (22,36%) dan berbeda dengan sampel roti manis lainnya. VCO secara efektif menghambat pertumbuhan jamur di roti manis pada konsentrasi 8%, 12%, dan 16%. Roti manis K dan A memiliki masa simpan 4 hari, sedangkan roti manis B, C, dan D memiliki masa simpan 6 hari.Kata kunci: VCO, roti manis, karakteristik, umur simpanABSTRACTVirgin Coconut Oil (VCO) is a natural ingredient that has antimicrobial (antiviral, antibacterial, and antifungal) properties. So that VCO can provide a preservative effect on food ingredients, one of which is sweet bread. This research was conducted to evaluate the effect of VCO on characteristics (physical and chemical) and shelf life of sweet bread. Sweet bread was analyzed physically (texture and porosity) and chemistry (moisture content, ash content, fat content, protein content, and carbohydrate content), and shelf life analysis with FFA, organoleptic and mold tests every two days for eight days of storage at ambient temperature. Treatment variations of sweet breads is from the ratio of the concentration of VCO: margarine: butter, K (0%: 8%: 8%); A (4%: 6%: 6%); B (8%: 4%: 4%), C (12%: 2%: 2%); D (16%: 0%: 0%). The results showed that VCO did not have a significant effect on the physical characteristics and chemical characteristics of sweet bread. However, the VCO has a significant effect on the water content of the sweet bread produced, sweet bread K has the highest moisture content (22,36%) and it is different from other sweet bread samples. VCO effectively inhibits the growth of sweet bread mold at concentrations of 8%, 12%, and 16%. K and A sweet bread has a shelf life of 4 days, while sweet breads B, C, and D have a shelf life of 6 days.Keywords: VCO, sweet bread, characteristics, shelf life


2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Bernaulli Putri Mulyanto ◽  
Yustina Wuri Wulandari ◽  
Akhmad Mustofa

      Brownies merupakan cake coklat yang terbuat dari tepung terigu, lemak, telur, gula pasir dan coklat. Metode pemasakan brownies ada dua yaitu pemanggangan dan pengukusan. Penelitian ini menggunakan tepung jewawut dan tepung maizena agar dihasilkan brownies kukus bebas gluten. Penelitian ini bertujuan untuk mengetahui formulasi tepung yang memiliki kadar protein tertinggi pada brownies dan untuk mengetahui lama pengukusan yang optimal sehingga menghasilkan brownies kukus tepung jewawut dan tepung jagung yang paling disukai. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan dua faktorial yaitu faktor pertama ratio tepung jewawut dan tepung jagung (50:50, 40:60 dan 30:70), sedangkan faktor kedua lama pengukusan (30 menit, 40 menit dan 50 menit). Hasil penelitian menunjukkan Brownies kukus tepung jewawut dan tepung jagung dengan ratio 50:50 dan lama pengukusan 50 menit merupakan ratio yang terbaik karena memiliki kadar protein paling tinggi yaitu 5.828%.  Pada perlakuan ini menghasilkan 19.967% kadar air, 1.585% kadar abu, 1.786% gula total, serta uji organoleptik terhadap warna 3.590 (coklat gelap), tekstur 3.340 (lembut), flavor jewawut 2.855 (sedikit terasa) dan kesukaan keseluruhan 3.285 (disukai). Kata kunci : Brownies, tepung jewawut, tepung jagung, kadar protein.  ABSTRACT      Brownies is chocolate cakes made from flour, fat, eggs, sugar and chocolate. There are two methods of cooking brownies namely roasting and steaming. This study uses millet flour and maizena flour to produced gluten free steamed brownies. This study aims to determine the best of flour formulated which has highest protein content in steamed brownies and to knew the optimal steaming time that produced the most favored  of  steamed brownies millet flour and  corn flour. This study used a completely randomized design (CRD) with two factorials, the first factor is ratio of millet flour and corn flour (50:50, 40:60 and 30:70), while the second factor was the duration of steaming process (30, 40 and 50 minutes). The result of the study showed steamed flour of millet flour and corn flour with ratio of 50:50 and with steamed process duration 50 minutes is the best ratio because it had the highest protein content of 5.828%.  In this treatment yielded 19.97% moisture content, 1.585% ash content, 1.786% total sugar and organoleptic test is 3.590 (dark chocolate) colors, 3.340 (soft) texture, 2.855 (slightly felt) millet flavors and 3.285 (preferred) overall preferences. Keywords :  Brownies, millet flour, corn flour, protein content


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